US3491983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder operated pinch flow valve
Assignee: Individual
•
Filing: 1966-02-07
•
Granted: 1970-01-27
•
Expires: 1986-02-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph Van Damme
- 👤 Carmen Charles Rendino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:02
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)
GB189325014A
Cited
US2600493A
Cited
US2659387A
Cited
GB693028A
Cited
US2770439A
Cited
US3018793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |