US3769171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microbiological streaking method
Assignee: Baxter International Inc
•
Filing: 1972-04-25
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Granted: 1973-10-30
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Expires: 1992-04-25
Abstract
Abstract A relatively flat rectangularly shaped container assembly having a cover, preferably of transparent material, which cover has a depending skirt that encompasses upwardly extending walls of the container. The container is constructed to contain a quantity of gelled material as a culture medium for bacteria and other microorganisms. A roller is positioned at one side for gravity movement from that side to the other side when the cover is removed and the container is inclined, whereby colonies of the microorganisms can be rapidly and uniformly isolated for identification and enumeration.
Inventors
- 👤 R Grimes
- 👤 R Bruen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:32
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/02; C12M23/04; C12M33/00; C12M33/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3623958A
Cited
US3677904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |