Patent US2120629A successfully refreshed from Google Patents.
Patent US1508398A successfully refreshed from Google Patents.
US1508398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush valve
Assignee: Individual
•
Filing: 1922-09-25
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Granted: 1924-09-16
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Expires: 1942-09-25
Abstract
No abstract record available.
Inventors
- 👤 James W Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:58
CPC Classifications
E; E03; E03D; E03D3/00; E03D3/02; E03D3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-09-16 | 1928-03-17 | 1928-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-09-16 | 1932-03-17 | 1932-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-09-16 | 1936-03-17 | 1936-09-16 | $7700.00 | Window Closed / Lapsed |