US2934315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reenforced valve seat
Assignee: MAROTTA VALVE CORP
•
Filing: 1956-03-27
•
Granted: 1960-04-26
•
Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 John G Kenann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:12
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0603; F16K31/0624; F16K31/0627; F16K1/00; F16K1/32; F16K1/34; F16K1/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2784737A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |