US2804060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained hydraulic tappet
Assignee: Johnson Products Inc
•
Filing: 1954-11-22
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Granted: 1957-08-27
•
Expires: 1974-11-22
Abstract
No abstract record available.
Inventors
- 👤 Paul F Bergmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:42
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/245; F01L2309/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2325932A
Cited
US2442566A
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US2460651A
Cited
US2442575A
Cited
US2438631A
Cited
US2570854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |