US2874208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark plug
Assignee: Motors Liquidation Co
•
Filing: 1954-01-26
•
Granted: 1959-02-17
•
Expires: 1974-01-26
Abstract
No abstract record available.
Inventors
- 👤 Earl W Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:27
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1142369A
Cited
US1135727A
Cited
US1271620A
Cited
US1609735A
Cited
US1872497A
Cited
US2111916A
Cited
US2312909A
Cited
US2442858A
Cited
US2632431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |