US4039247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for use in testing of fluid samples on microscope slides
Assignee: National Research Development Corp UK
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Filing: 1975-12-12
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Granted: 1977-08-02
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Expires: 1995-12-12
Abstract
Abstract A device for use in a test procedure in which a plurality of discrete fluid samples is disposed on a microscope slide which comprises a slide support and clamping means for clamping a slide between a gasket provided with a plurality of apertures therethrough and said support, said clamping means being adapted, when actuated, to apply pressure to the gasket whereby said apertures are sealed against said slide in a fluid tight manner to provide a plurality of wells for introduction of fluid thereto.
Inventors
- 👤 Michael John Patrick Lawman
- 👤 Ian Scott Caie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/34; Y; Y10; Y10S; Y10S435/00; Y10S435/975
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
152 words
A device for use in a test procedure in which a plurality of discrete fluid samples is disposed on a microscope slide comprising: a slide support for supporting a plurality of slides and having a plurality of inspection holes therethrough; a flexible gasket provided with a plurality of apertures therethrough for contacting said slides on said support to define a plurality of sample wells; means for clamping said gasket to said support to apply pressure to said gasket so as to seal said gasket apertures against said slide in a fluid tight relation including a plate for overlying said gasket for contact therewith, said plate having a plurality of apertures for registration with the gasket apertures, a plurality of studs carried by said support and extending through stud apertures in said gasket and plate, and fastener means for engaging said studs to clamp said gasket and slide between said plate and support.
Claim 2
Independent Claim
152 words
A device for use in a test procedure in which a plurality of discrete fluid samples is disposed on a microscope slide comprising: a slide support for supporting a plurality of slides and having a plurality of inspection holes therethrough; a flexible gasket provided with a plurality of apertures therethrough for contacting said slides on said support to define a plurality of sample wells; means for clamping said gasket to said support to apply pressure to said gasket so as to seal said gasket apertures against said slide in a fluid tight relation including a plate for overlying said gasket for contact therewith, said plate having a plurality of apertures for registration with the gasket apertures, a plurality of studs carried by said support and extending through stud apertures in said gasket and plate, and fastener means for engaging said studs to clamp said gasket and slide between said plate and support.
Claim 3
Dependent Claim
17 words
A device according to claim 1, wherein said studs are located adjacent the periphery of said plate.
Claim 4
Dependent Claim
16 words
A device according to claim 1, which comprises a gasket of a material which withstands autoclaving.
Claim 5
Dependent Claim
15 words
A device according to claim 6, in which the gasket is of a silicone rubber.
Claim 6
Dependent Claim
27 words
A device according to claim 1, which comprises a gasket the surface of which for contact with the slide is treated with a material facilitating release therefrom.
Claim 7
Dependent Claim
28 words
A device according to claim 1, in which the slide support is provided with means for locating a plurality of slides thereon side by side in a row.
Claim 8
Dependent Claim
19 words
A device as in claim 1, wherein said inspection holes are dimensioned to accommodate the head of a microscope.
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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |