US2640497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for milking systems
Assignee: Individual
•
Filing: 1951-11-06
•
Granted: 1953-06-02
•
Expires: 1971-11-06
Abstract
No abstract record available.
Inventors
- 👤 Robert E Reeve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:42
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/02; F16K5/0292; A; A01; A01J; A01J5/00; A01J5/04; A01J5/044; F16K5/08; F16K5/14; F16K5/16; F16K5/162; F16K5/166; F16L; F16L37/00; F16L37/24; F16L37/244; F16L37/252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US209380A
Cited
US322286A
Cited
US767843A
Cited
US831060A
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US1622216A
Cited
US1695207A
Cited
US1846865A
Cited
US2258017A
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 |