US2898902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for supplying additives to lubricating system
Assignee: Individual
•
Filing: 1954-08-17
•
Granted: 1959-08-11
•
Expires: 1974-08-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph A Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:46
CPC Classifications
F; F01; F01M; F01M9/00; F01M9/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR818338A
Cited
US1304149A
Cited
US2705458A
Cited
US920769A
Cited
US1905179A
Cited
US1914900A
Cited
US1635563A
Cited
US1576497A
Cited
GB275259A
Cited
GB284492A
Cited
US1987256A
Cited
US2048323A
Cited
US1961514A
Cited
US2159656A
Cited
US2194007A
Cited
US2232620A
Cited
US2345606A
Cited
US2370653A
Cited
US2499784A
Cited
US2674343A
Cited
US2722210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |