US2923316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating valve
Assignee: PAUL VALVE Corp
•
Filing: 1953-09-21
•
Granted: 1960-02-02
•
Expires: 1973-09-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Herman L Paul
- 👤 Jr Ruel E Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:12
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7767
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US406029A
Cited
US581373A
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US685930A
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US925812A
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US1084940A
Cited
US1724891A
Cited
US2158068A
Cited
US2340954A
Cited
US2629578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |