Patent US5004418A successfully refreshed from Google Patents.
US5004418A
Expired / Lapsed
US
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Dental instrument mat
Assignee: Individual
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Filing: 1990-01-03
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Granted: 1991-04-02
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Expires: 2010-01-03
Abstract
Abstract A dental instrument mat includes a base portion having two opposite sides and two opposite ends and a pair of racks formed longitudinally along the two opposite sides. Each rack has a plurality of spaced apart teeth, and the teeth of each rack are laterally aligned with teeth of the other rack to form a plurality of laterally disposed holding slots. An elastic band is looped over protrusions formed at the opposite axial ends of the base portion so as to place the elastic band in tension and thereby hold dental instruments in the holding slots during autoclaving.
Inventors
- 👤 Paul D. Porteous
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/02; A61B; A61B50/00; A61B50/30; A61B50/33
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
127 words
A dental instrument mat comprising: a base portion having two opposite sides and two opposite ends; a pair of racks formed longitudinally along the two opposite sides, each rack having a plurality of spaced apart teeth, the teeth of each rack being laterally aligned with the teeth of the other rack to define a plurality of laterally disposed holding slots, each being capable of holding a dental instrument, said holding slots being substantially free of frictional constraining means for holding said dental instruments; and removable retaining means, detachably coupled to the base portion, for tautly engaging an upwardly disposed surface of each dental instrument and downwardly biasing the same, to thereby positionally maintain dental instruments in the holding slots which are substantially free of frictional constraining means.
Claim 2
Dependent Claim
127 words
A dental instrument mat comprising: a base portion having two opposite sides and two opposite ends; a pair of racks formed longitudinally along the two opposite sides, each rack having a plurality of spaced apart teeth, the teeth of each rack being laterally aligned with the teeth of the other rack to define a plurality of laterally disposed holding slots, each being capable of holding a dental instrument, said holding slots being substantially free of frictional constraining means for holding said dental instruments; and removable retaining means, detachably coupled to the base portion, for tautly engaging an upwardly disposed surface of each dental instrument and downwardly biasing the same, to thereby positionally maintain dental instruments in the holding slots which are substantially free of frictional constraining means.
Claim 3
Dependent Claim
17 words
A dental instrument mat according to claim 1, wherein the removable retaining means comprises elastic retaining means.
Claim 4
Dependent Claim
31 words
A dental instrument mat according to claim 1 further comprising at least one protrusion formed at each of the opposite ends of the base portion for mounting the removable retaining means.
Claim 5
Dependent Claim
36 words
A dental instrument mat according to claim 3 wherein the removable retaining means is an elastic band which loops around the at least one protrusion formed at each of the opposite ends of the base portion.
Claim 6
Dependent Claim
37 words
A dental instrument mat according to claim 4 wherein the at least one protrusion formed at each of the opposite ends of the base portion comprises a single protrusion formed by a pair of cut out undulations.
Claim 7
Dependent Claim
44 words
A dental instrument mat according to claim 4, wherein the at least one protrusion comprises a pair of protrusions formed at each of the opposite ends of the base portion, each pair of protrusions extending longitudinally beyond the opposite ends of the base portion.
Claim 8
Dependent Claim
41 words
A dental instrument mat according to claim 4, wherein the at least one protrusion comprises a single protrusion formed at each of the opposite ends of the base portion, each protrusion extending longitudinally beyond the opposite ends of the base portion.
Claim 9
Dependent Claim
170 words
A dental instrument mat comprising: a base portion having two opposite sides and two opposite ends; a pair of racks formed longitudinally along the two opposite sides, each rack having a plurality of spaced apart teeth, the teeth of each rack being laterally aligned with the teeth of the other rack to define a plurality of laterally disposed holding slots, each holding slot being capable of holding a dental instrument, said holding slots being substantially free of frictional constraining means for holding said dental instruments; at least one protrusion formed at each of the opposite ends of the base portion; and an elastic band detachably coupled to the base portion by looping over the at least one protrusion provided at each of the opposite ends of the base portion, thereby placing the elastic band in tension for tautly engaging an upwardly disposed surface of each dental instrument and downwardly biasing the same, to thereby positionally maintain dental instruments in the holding slots which are substantially free of frictional constraining means.
Claim 10
Dependent Claim
170 words
A dental instrument mat comprising: a base portion having two opposite sides and two opposite ends; a pair of racks formed longitudinally along the two opposite sides, each rack having a plurality of spaced apart teeth, the teeth of each rack being laterally aligned with the teeth of the other rack to define a plurality of laterally disposed holding slots, each holding slot being capable of holding a dental instrument, said holding slots being substantially free of frictional constraining means for holding said dental instruments; at least one protrusion formed at each of the opposite ends of the base portion; and an elastic band detachably coupled to the base portion by looping over the at least one protrusion provided at each of the opposite ends of the base portion, thereby placing the elastic band in tension for tautly engaging an upwardly disposed surface of each dental instrument and downwardly biasing the same, to thereby positionally maintain dental instruments in the holding slots which are substantially free of frictional constraining means.
Claim 11
Dependent Claim
56 words
A dental instrument mat according to claim 8, wherein the at least one protrusion formed at each of the opposite ends of the base portion is below the dental instruments when held in holding slots so that as the elastic band is placed in tension, the dental instruments are elastically biased downwardly into the holding slots.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-01 | 1994-10-01 | 1995-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-01 | 1998-10-01 | 1999-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-01 | 2002-10-01 | 2003-04-02 | $7700.00 | Window Closed / Lapsed |