US2617841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine ignition
Assignee: RCA Corp
•
Filing: 1949-01-03
•
Granted: 1952-11-11
•
Expires: 1969-01-03
Abstract
No abstract record available.
Inventors
- 👤 Ernest G Linder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:51
CPC Classifications
F; F02; F02P; F02P23/00; F02P23/04; F02P23/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2002114A
Cited
US2402539A
Cited
US1401231A
Cited
US2401489A
Cited
US2417542A
Cited
US2410122A
Cited
US2461168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |