US3776818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover element disc dispenser
Assignee: Individual
•
Filing: 1970-06-19
•
Granted: 1973-12-04
•
Expires: 1990-06-19
Abstract
Abstract A DISC DISPENSER FOR USE IN MICROBIOLOGICAL TECHNIQUES SUCH AS ANTIBIOTIC SENSITIVITY TESTING IS PROVIDED BY ADDING TO THE CONVENTIONAL PETRI DISH A COVER ELEMENT HAVING MEANS FOR HOLDING PAPER DISCS IN A PREDETERMINED PATTERN. THE DISCS MAY BE ACCURATELY DEPOSITED ONTO MEDIA CONTAINED IN THE DISH BY REMOVING THE LID AND COVER ELEMENT, REPLACING THE COVER ELEMENT OF THE INVENTION, AND INVERTING THE ASSEMLY TO ALLOW THE DISCS TO FALL INTO PLACE. DISCS ARE THEREBY POSITIONED ACCURATELY WITHOUT THE NEED OF AN ELABORATE DISPENSING DEVICE.
Inventors
- 👤 W Khan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:19
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/02; C12M23/10; C12M23/34; C12M23/38; C12M25/00; C12M25/14; C12M33/00; C12M33/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |