Patent US5847714A successfully refreshed from Google Patents.
Patent US4415086A successfully refreshed from Google Patents.
US4415086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inoculum tray
Assignee: Sandy Spring Instrument Co Inc
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Filing: 1983-03-04
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Granted: 1983-11-15
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Expires: 2003-03-04
Abstract
Abstract A substantially rectangular inoculum tray is provided with a reservoir in the upper surface thereof having at least one apertured side wall with the bottom surface of each aperture being at least at the level of the bottom surface of the reservoir. A plurality of parallel identical grooves are formed in the upper surface of the tray with one end of each groove being in communication with a respective aperture. The bottom surface of each groove is disposed below the bottom surface of the reservoir so that upon introducing a liquid medium into said reservoir a pressure head will be formed so that a uniform distribution of the liquid will occur from the reservoir into each individual groove.
Inventors
- 👤 John T. Bennett, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:39
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/02; C12M23/04; C12M23/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
A liquid handling tray having an upper surface, a reservoir formed in the upper surface of said tray with a bottom surface spaced below said upper surface and a side wall having a plurality of apertures therein with the bottom of each aperture being at least at the level of the bottom surface of said reservoir and a plurality of grooves formed in the upper surface of said tray with the bottom surface thereof being disposed below the bottom surface of said reservoir whereby the liquid poured into said reservoir will be uniformly distributed through said apertures into said grooves.
Claim 2
Dependent Claim
100 words
A liquid handling tray having an upper surface, a reservoir formed in the upper surface of said tray with a bottom surface spaced below said upper surface and a side wall having a plurality of apertures therein with the bottom of each aperture being at least at the level of the bottom surface of said reservoir and a plurality of grooves formed in the upper surface of said tray with the bottom surface thereof being disposed below the bottom surface of said reservoir whereby the liquid poured into said reservoir will be uniformly distributed through said apertures into said grooves.
Claim 3
Dependent Claim
47 words
A liquid handling tray as set forth in claim 1 wherein said tray has a rectilinear configuration with said reservoir extending substantially the entire width of said tray perpendicular to the side edges thereof and said grooves are disposed parallel to each other perpendicular to said reservoir.
Claim 4
Dependent Claim
80 words
A liquid handling tray as set forth in claim 2 further comprising a second set of parallel grooves extending perpendicular to said reservoir on the opposite side thereof from said first mentioned grooves, said reservoir having a second apertured side wall with the bottom of each aperture being disposed at least at the level of the bottom surface of said reservoir and each of said second set of grooves having a bottom surface below the bottom surface of said reservoir.
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) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |