Patent US3076706A successfully refreshed from Google Patents.
Patent US3448986A successfully refreshed from Google Patents.
US3448986A
Expired / Lapsed
US
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Gasket and joint for cylinder heads
Assignee: Parker Hannifin Corp
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Filing: 1966-08-04
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Granted: 1969-06-10
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Expires: 1986-08-04
Abstract
No abstract record available.
Inventors
- 👤 Jerry G Jelinek
- 👤 Harrell M Dial
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:21
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; F16J15/122; F16J15/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2532891A
Cited
US2679241A
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US3093581A
Cited
US3195906A
Cited
US3215442A
Cited
US3191950A
Cited
US3285615A
Cited
US3340774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |