Patent US2925608A successfully refreshed from Google Patents.
US2925608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush tank valve
Assignee: Individual
•
Filing: 1957-10-17
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Granted: 1960-02-23
•
Expires: 1977-10-17
Abstract
No abstract record available.
Inventors
- 👤 Paul J Gresham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:08
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1145635A
Cited
US1440469A
Cited
US2222856A
Cited
US2290679A
Cited
US2778028A
Cited
US2820968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |