US2628362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush valve
Assignee: Individual
•
Filing: 1948-04-28
•
Granted: 1953-02-17
•
Expires: 1968-04-28
Abstract
No abstract record available.
Inventors
- 👤 Birkmaier John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:47
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1054940A
Cited
US1237109A
Cited
US1515414A
Cited
US1655894A
Cited
US1799770A
Cited
US1926754A
Cited
US2189345A
Cited
US2460114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |