US3451894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas cap for culture tubes
Assignee: University of Tennessee Research Foundation
•
Filing: 1967-04-28
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Granted: 1969-06-24
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Expires: 1987-04-28
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Anandam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:27
CPC Classifications
C; C12; C12M; C12M29/00; B; B65; B65D; B65D51/00; B65D51/24; B65D51/28; B65D51/2807; B65D51/2814; B65D51/2821; C12M23/00; C12M23/02; C12M23/08; C12M23/32; C12M23/38; Y; Y10; Y10S; Y10S435/00; Y10S435/801
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3248302A
Cited
US3326401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |