Patent US11473A successfully refreshed from Google Patents.
Patent US3577326A successfully refreshed from Google Patents.
Patent US2682508A successfully refreshed from Google Patents.
Patent US4567410A successfully refreshed from Google Patents.
Patent US2630107A successfully refreshed from Google Patents.
US2630107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark plug
Assignee: ANDREW R COCHRANE
•
Filing: 1949-12-15
•
Granted: 1953-03-03
•
Expires: 1969-12-15
Abstract
No abstract record available.
Inventors
- 👤 Karcher Floyde Josephine Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:39
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/20; H01T13/39
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US988451A
Cited
US1017459A
Cited
US1244416A
Cited
US1213637A
Cited
US1488543A
Cited
US1403448A
Cited
US1464685A
Cited
US1500916A
Cited
US1853129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |