US2954703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast-acting valve system
Assignee: Individual
•
Filing: 1956-10-17
•
Granted: 1960-10-04
•
Expires: 1976-10-17
Abstract
No abstract record available.
Inventors
- 👤 James N Morrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:31
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/05; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US619047A
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US1582715A
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US916831A
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US1557863A
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US1843347A
Cited
US2052947A
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US1991081A
Cited
US2145146A
Cited
US2580122A
Cited
US2615469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |