Patent US3057596A successfully refreshed from Google Patents.
US3057596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve assembly
Assignee: Individual
•
Filing: 1960-07-26
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Granted: 1962-10-09
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Expires: 1980-07-26
Abstract
No abstract record available.
Inventors
- 👤 John E Tobin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:40
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/02; F16K41/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1774994A
Cited
US2373001A
Cited
US2720845A
Cited
US2805040A
Cited
US2865596A
Cited
US2833512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |