US2659387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pinch valve mechanism
Assignee: Individual
•
Filing: 1950-02-08
•
Granted: 1953-11-17
•
Expires: 1970-02-08
Abstract
No abstract record available.
Inventors
- 👤 Farris Victor Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:01
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US210334A
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US579501A
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US726962A
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US887103A
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US1809091A
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US1757548A
Cited
US1954920A
Cited
US2183835A
Cited
FR873587A
Cited
US2371434A
Cited
US2418821A
Cited
CH254906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |