US2801022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating screw plug for barrels and other containers and sealing means for said plug
Assignee: American Flange and Manufacturing Co Inc
•
Filing: 1951-08-14
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Granted: 1957-07-30
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Expires: 1971-08-14
Abstract
No abstract record available.
Inventors
- 👤 Evenblij Johan Carl Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:52
CPC Classifications
B; B65; B65D; B65D39/00; B65D39/08; B65D39/082; B65D39/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2011013A
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US1901196A
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US2157601A
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US2138252A
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US2255964A
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US2411149A
Cited
US2345889A
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US2445802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |