Patent US3064937A successfully refreshed from Google Patents.
US3064937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary valve
Assignee: Individual
•
Filing: 1960-03-30
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Granted: 1962-11-20
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Expires: 1980-03-30
Abstract
No abstract record available.
Inventors
- 👤 Collier C Pryor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:54
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US196474A
Cited
US1949191A
Cited
US2072965A
Cited
US2104056A
Cited
US2277975A
Cited
US2333424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |