US2634758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manual valve having adjustable valve-opening limit means
Assignee: Individual
•
Filing: 1949-07-16
•
Granted: 1953-04-14
•
Expires: 1969-07-16
Abstract
No abstract record available.
Inventors
- 👤 Ojalvo Edmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:12
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/50; F16K31/508; F16K1/00; F16K1/32; F16K1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US915321A
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US1087001A
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US1200676A
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US1324196A
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US1886159A
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US2114934A
Cited
US2060748A
Cited
US2059370A
Cited
US2330610A
Cited
US2366520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |