US3511512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lip seal for light lubricants
Assignee: JOHN CRANE HOUDAILLE Inc A CORP OF
•
Filing: 1968-01-05
•
Granted: 1970-05-12
•
Expires: 1988-01-05
Abstract
No abstract record available.
Inventors
- 👤 Edward A Wheelock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:41
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2644804A
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US2819106A
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US2867457A
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US2824060A
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US2973978A
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US2966376A
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US3099454A
Cited
US3291864A
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US3147981A
Cited
US3207521A
Cited
US3254898A
Cited
US3314916A
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 |