US4092120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for establishing fecal occult blood
Assignee: Thermo Fisher Scientific Oy
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Filing: 1976-11-19
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Granted: 1978-05-30
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Expires: 1996-11-19
Abstract
Abstract A device is disclosed for the storage and testing of laboratory samples. The device includes a base plate having an aperture therethrough and having a recess extending into its bottom surface. A first raised wall member extends outwardly from the upper surface of the base plate to define a sample storage area over the aperture. A top cover is configured to fit over the upper surface of the base plate and includes a raised portion which extends into the raised wall portion on the base plate to compress the sample. A bottom cover fits snugly within the recess on the bottom surface. A sheet of testing material such as filter paper may be disposed within the recess beneath the bottom cover where it is brought in contact with the sample through the aperture in the base plate.
Inventors
- 👤 Osmo Suovaniemi
- 👤 Pertti Virkola
- 👤 Herman Adlercreutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:58
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/72; G01N33/721; G01N33/726; A; A61; A61B; A61B10/00; A61B10/0038; B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; A61B90/00; A61B90/90; B01L2300/00; B01L2300/04; B01L2300/041; B01L2300/043; B01L2300/08; B01L2300/0809
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
126 words
A device for the storage and testing of a laboratory sample including: a base plate having a top and a bottom surface, a recess in said bottom surface, and an aperture extending through said base plate; a first raised wall member extending outwardly from said top surface of said base plate, said wall member being disposed about and adjacent to said aperture to define a storage area for said sample; a first cover including a raised portion which extends into the storage area defined by said raised wall member to compress said sample when said first cover is placed over said top surface of said base plate; and a second cover configured to fit snugly within said recess in said bottom surface to cover said aperture.
Claim 2
Independent Claim
126 words
A device for the storage and testing of a laboratory sample including: a base plate having a top and a bottom surface, a recess in said bottom surface, and an aperture extending through said base plate; a first raised wall member extending outwardly from said top surface of said base plate, said wall member being disposed about and adjacent to said aperture to define a storage area for said sample; a first cover including a raised portion which extends into the storage area defined by said raised wall member to compress said sample when said first cover is placed over said top surface of said base plate; and a second cover configured to fit snugly within said recess in said bottom surface to cover said aperture.
Claim 3
Dependent Claim
89 words
A device as claimed in claim 1 in which said first raised wall member includes at least one aperture extending therethrough and in which a second raised wall member extends outwardly from said top surface of said base plate, said second wall member surrounding said first wall member to define a reserve space on said top surface of said base plate into which excess material from said sample is forced when said raised portion of said first cover extends into said storage space defined by said first wall member.
Claim 4
Dependent Claim
27 words
A device as claimed in claim 1 in which said first and second covers are attached to said base plate by flexible strips which serve as hinges.
Claim 5
Dependent Claim
38 words
A device as claimed in claim 1 in which said first cover includes a first outwardly extending portion which is configured to fit snugly against said second wall member so that said first cover seals said reserve space.
Claim 6
Dependent Claim
75 words
A device as claimed in claim 1 in which said top surface of said base plate includes a raised portion having an outer circumferential edge and an upper substantially planar surface, said first and second wall members being formed on said substantially planar surface of said raised portion and in which said first cover includes a second outwardly extending portion which is configured to fit snugly about said outer circumferential edge of said raised portion.
Claim 7
Dependent Claim
30 words
A device as claimed in claim 1 including an elongated applicator member for use in applying said sample to said storage area which is removably connected to said base plate.
Claim 8
Dependent Claim
41 words
A device as claimed in claim 1 including a sheet of testing material disposed within said recess in the bottom surface of said base plate such that a portion of said sheet is exposed through said aperture in said base plate.
Claim 9
Dependent Claim
22 words
A device as claimed in claim 7 in which said testing material is filter paper which has been treated with guaiac resin.
Claim 10
Dependent Claim
26 words
A device as claimed in claim 7 including a support ring disposed within said recess to hold said sheet of testing material in a predetermined position.
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) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |