Patent US2995337A successfully refreshed from Google Patents.
US2995337A
Expired / Lapsed
US
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Valve
Assignee: Individual
•
Filing: 1959-03-30
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Granted: 1961-08-08
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Expires: 1979-03-30
Abstract
No abstract record available.
Inventors
- 👤 Charles L Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:13
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/22; F16K3/24; F16K3/243; F16K31/00; F16K31/44; F16K31/53; F16K31/54; Y; Y10; Y10S; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2854998A
Cited
US1157215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |