Patent US3490986A successfully refreshed from Google Patents.
US3490986A
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Self-molding packing
Assignee: OIL CENTER RESEARCH Inc
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Filing: 1967-03-07
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Granted: 1970-01-20
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Expires: 1987-03-07
Abstract
No abstract record available.
Inventors
- 👤 Robert B Abrabi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:23
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/20; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2927; Y10T428/2973
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2998397A
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US2891921A
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US2930106A
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US3223676A
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US3097990A
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FR1419195A
Cited
US3291496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |