US3511513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination axial-mechanical face and radial lip seal
Assignee: INTERN PACKINGS CORP
•
Filing: 1968-01-12
•
Granted: 1970-05-12
•
Expires: 1988-01-12
Abstract
No abstract record available.
Inventors
- 👤 John Charles Dahlheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:59
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2479968A
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US2554406A
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US2797940A
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US2859988A
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US2830858A
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US2833577A
Cited
US3031199A
Cited
US3152808A
Cited
US3109660A
Cited
US3181874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |