US3521608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained hydraulic valve lifter
Assignee: Motors Liquidation Co
•
Filing: 1968-10-16
•
Granted: 1970-07-28
•
Expires: 1988-10-16
Abstract
No abstract record available.
Inventors
- 👤 Elias W Scheibe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:47
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/245; F01L1/25
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB443401A
Cited
US2109815A
Cited
US2187008A
Cited
GB562101A
Cited
US2526593A
Cited
US2915051A
Cited
US2907310A
Cited
US2971502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |