Patent US3437080A successfully refreshed from Google Patents.
US3437080A
Expired / Lapsed
US
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Valve tappet
Assignee: Eaton Corp
•
Filing: 1967-11-13
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Granted: 1969-04-08
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Expires: 1987-11-13
Abstract
No abstract record available.
Inventors
- 👤 Roy F Abell Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:53
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01L1/20; F01L1/22; F01L1/24; F01L1/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3124114A
Cited
US2192454A
Cited
US2326883A
Cited
US2791993A
Cited
US2874685A
Cited
US2865352A
Cited
US3299870A
Cited
US3322104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |