Patent US3066909A successfully refreshed from Google Patents.
US3066909A
Expired / Lapsed
US
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Plug valve
Assignee: Continental Manufacturing Co
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Filing: 1959-10-26
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Granted: 1962-12-04
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Expires: 1979-10-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles L Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:15
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/16; F16K5/168; F16K5/02; F16K5/0257; F16K5/0271
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US512892A
Cited
US1400647A
Cited
US1409691A
Cited
US2728550A
Cited
US2930576A
Cited
US2911187A
Cited
US2987295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |