US2684674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stopper for fluid containers
Assignee: Individual
•
Filing: 1951-05-28
•
Granted: 1954-07-27
•
Expires: 1971-05-28
Abstract
No abstract record available.
Inventors
- 👤 Hugh M Archer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/162; A61J; A61J1/00; A61J1/14; A61J1/1412; A61J1/1431; A61J1/1462; A61J1/18; A61J1/1468; A61M2005/1623
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1238653A
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US1372715A
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US1869049A
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US1902892A
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US1952437A
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US2002835A
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US2202163A
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US2276421A
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US2231564A
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US2311367A
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US2500199A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |