Patent US3159302A successfully refreshed from Google Patents.
US3159302A
Expired / Lapsed
US
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Sealing connection including a rigid sealing ring having opposed, elastically deflectable lips
Assignee: Vetco Gray LLC
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Filing: 1962-02-19
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Granted: 1964-12-01
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Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Latham
- 👤 John D Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:15
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/46; F16J15/48; Y; Y10; Y10S; Y10S285/00; Y10S285/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US881060A
Cited
US924039A
Cited
US1567813A
Cited
US2226495A
Cited
US2747900A
Cited
US2843155A
Cited
US3046026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |