US2677646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unit for bacterial analysis
Assignee: Lovell Chemical Co
•
Filing: 1952-03-22
•
Granted: 1954-05-04
•
Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 Stanley P Lovell
- 👤 John H Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:58
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/02; C12M23/10; C12M23/22; C12M23/38; C12M23/54; C12M25/00; C12M25/02; C12M25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A UNIT FOR BACTERIAL ANALYSIS COMPRISING A CIRCULAR BOX OF TRANSPARENT PLASTICC HAVING AN ANNULAR WALL AND A REMOVABLE CLOSE-FITTING COVER, A NUTRIENT DISK OF INERT CELLULOSE COVERING THE BOTTOM OF THE BOX, A TRANSPARENT RING SUBSTANTIALLY RECTANGULAR IN CROSS SECTION FITTED WITHIN THE BOX, AND A CIRCULAR MULTIPORE FILTER DISK WHICH WILL NOT PERMIT THE PASSAGE OF MICRO-ORGANISMS THERETHROUGH, SAID DISK BEING CEMENTED TO THE LOWER CIRCULAR FACE OF THE RING, ENGAGING SAID NUTRIENT DISK IN DIRECT FACE-TO-FACE CONTACT AND HELD IN PLACE BY THE COVER AND WALL OF THE BOX.
Claim 2
Dependent Claim
92 words
A UNIT FOR BACTERIAL ANALYSIS COMPRISING A CIRCULAR BOX OF TRANSPARENT PLASTICC HAVING AN ANNULAR WALL AND A REMOVABLE CLOSE-FITTING COVER, A NUTRIENT DISK OF INERT CELLULOSE COVERING THE BOTTOM OF THE BOX, A TRANSPARENT RING SUBSTANTIALLY RECTANGULAR IN CROSS SECTION FITTED WITHIN THE BOX, AND A CIRCULAR MULTIPORE FILTER DISK WHICH WILL NOT PERMIT THE PASSAGE OF MICRO-ORGANISMS THERETHROUGH, SAID DISK BEING CEMENTED TO THE LOWER CIRCULAR FACE OF THE RING, ENGAGING SAID NUTRIENT DISK IN DIRECT FACE-TO-FACE CONTACT AND HELD IN PLACE BY THE COVER AND WALL OF THE BOX.
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) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |