US2768227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low tension ignition systems
Assignee: Individual
•
Filing: 1952-03-06
•
Granted: 1956-10-23
•
Expires: 1972-03-06
Abstract
No abstract record available.
Inventors
- 👤 Ruckelshaus John Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:32
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/02; H01T13/04; H01T13/05; F; F02; F02P; F02P7/00; F02P7/02; F02P7/021; F02P7/025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2240632A
Cited
US1217484A
Cited
US2161605A
Cited
US2238915A
Cited
US2114189A
Cited
US2180358A
Cited
US2318271A
Cited
US2297659A
Cited
US2533920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |