US2986141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic cartridge ampoule
Assignee: STWB Inc
•
Filing: 1954-01-08
•
Granted: 1961-05-30
•
Expires: 1974-01-08
Abstract
No abstract record available.
Inventors
- 👤 John W Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:11
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/24; A61M2005/2403; A61M2005/2407; A61M2005/2485; A61M2005/2496
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US978488A
Cited
US2022369A
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US2228537A
Cited
US2512568A
Cited
US2473733A
Cited
US2540461A
Cited
US2648334A
Cited
US2616420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |