US3706106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical knife
Assignee: Individual
•
Filing: 1971-01-18
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Granted: 1972-12-19
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Expires: 1991-01-18
Abstract
Abstract A surgical knife including a base portion having an element removably mounting a surgical steel blade and a removable pin guard for the knife edge and point with a cylindrical tube removably surrounding the knife and pin and having a removable protective cover for the assembly. The base portion is adapted for connection with a utilitarian article and preferably one normally carried on the person.
Inventors
- 👤 Norbert Leopoldi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:18
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3213; A61B17/3215
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A utilitarian article including a surgical knife assembly comprising a base portion having a lengthwise extending blade mounting element, a surgical steel blade removably secured on said mounting element, a cylindrical tube surrounding said mounting element and steel blade, a protective cover for the assembly, removably connected with the base portion, said base portion having means for connection with the utilitarian article, said base portion having a pin socket, a lengthwise extending pin in said socket positioned along the cutting edge of said blade, and said cylindrical tube surrounds the mounting element, steel blade and said pin.
Claim 2
Dependent Claim
97 words
A utilitarian article including a surgical knife assembly comprising a base portion having a lengthwise extending blade mounting element, a surgical steel blade removably secured on said mounting element, a cylindrical tube surrounding said mounting element and steel blade, a protective cover for the assembly, removably connected with the base portion, said base portion having means for connection with the utilitarian article, said base portion having a pin socket, a lengthwise extending pin in said socket positioned along the cutting edge of said blade, and said cylindrical tube surrounds the mounting element, steel blade and said pin.
Claim 3
Dependent Claim
29 words
The surgical knife assembly of claim 1 wherein said pin mounted in said socket extends parallel to the edge of said blade and beyond the point of the blade.
Claim 4
Dependent Claim
43 words
The surgical knife assembly of claim 1 wherein said cylindrical tube is provided with a series of laterally extending pairs of aligned holes through the walls thereof in longitudinally spaced relation, and said pin is disposed through an aligned pair of such holes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |