US3404902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflectable lip sealing connection having spoiler feature
Assignee: Vetco Gray LLC
•
Filing: 1965-11-09
•
Granted: 1968-10-08
•
Expires: 1985-11-09
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Latham
- 👤 Robert T Brown
- 👤 Charles A Bollfrass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:10
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/16; F16L23/18; F16J; F16J13/00; F16J13/02; F16J13/06; F16J13/065; F16J15/00; F16J15/02; F16J15/04; F16J15/06; F16J15/08; F16J15/0881; F16L17/00; F16L17/06; F16L17/08; F16L23/04; F16L23/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1497652A
Cited
US2447185A
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US2477533A
Cited
US2688500A
Cited
US2746486A
Cited
US2766999A
Cited
US3141685A
Cited
US3290047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |