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Patent US3486733A successfully refreshed from Google Patents.
US3486733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat ring for ball valves
Assignee: Neles Jamesbury Inc
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Filing: 1967-09-01
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Granted: 1969-12-30
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Expires: 1987-09-01
Abstract
No abstract record available.
Inventors
- 👤 Bennett E Gordon Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:21
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0626; F16K5/0663; F16K5/0673; F16K5/08; F16K5/14; F16K5/20; F16K5/205; F16K5/208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2297161A
Cited
US2373628A
Cited
US3014690A
Cited
US3272472A
Cited
GB978601A
Cited
US3401914A
Cited
US3356337A
Cited
US3380706A
Cited
US3394915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |