Patent US2632182A successfully refreshed from Google Patents.
US2632182A
Expired / Lapsed
US
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Flush valve guide device
Assignee: Individual
•
Filing: 1949-09-19
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Granted: 1953-03-24
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Expires: 1969-09-19
Abstract
No abstract record available.
Inventors
- 👤 Stader Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:08
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34; E03D1/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US369843A
Cited
US592810A
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US1054940A
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US1576299A
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US2121362A
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US2230613A
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US2328701A
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US2512924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |