US2904794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet flush valve assembly
Assignee: WILLIAM W FLENNIKEN
•
Filing: 1957-08-19
•
Granted: 1959-09-22
•
Expires: 1977-08-19
Abstract
No abstract record available.
Inventors
- 👤 Charley L Goldtrap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:00
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190916145A
Cited
US1177443A
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US1237109A
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US1420452A
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US1439268A
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US1753997A
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US1904898A
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US2597474A
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US2614263A
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US2778028A
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US2832963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |