US3542618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing sterile test tubes
Assignee: DONALD H DEVAUGHN
•
Filing: 1967-09-25
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Granted: 1970-11-24
•
Expires: 1987-09-25
Abstract
No abstract record available.
Inventors
- 👤 Donald H Devaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:32
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/10; B65B9/24; C; C12; C12M; C12M23/00; C12M23/02; C12M23/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2975
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2501833A
Cited
US2454194A
Cited
US2790994A
Cited
US3163690A
Cited
US3226285A
Cited
US3329998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |