US2640675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually operated pinch valve
Assignee: Individual
•
Filing: 1949-07-22
•
Granted: 1953-06-02
•
Expires: 1969-07-22
Abstract
No abstract record available.
Inventors
- 👤 Farris Victor Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06; F16K7/061; A; A01; A01G; A01G25/00; A01G25/16; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/4465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US582027A
Cited
US597443A
Cited
DE471929C
Cited
US1432882A
Cited
US2070143A
Cited
US2212733A
Cited
US2183835A
Cited
US2285821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |