US2905431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: JAS P MARSH Corp
•
Filing: 1953-09-11
•
Granted: 1959-09-22
•
Expires: 1973-09-11
Abstract
No abstract record available.
Inventors
- 👤 Richard H Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:51
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1269721A
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US1496935A
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US1804751A
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US1964921A
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US2193075A
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US2257249A
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US2295208A
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US2531824A
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US2677390A
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US2696828A
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US2649688A
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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) | 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 |