US2568404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine starting mechanism
Assignee: Individual
•
Filing: 1947-03-17
•
Granted: 1951-09-18
•
Expires: 1967-03-17
Abstract
No abstract record available.
Inventors
- 👤 Romeo M Nardone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:09
CPC Classifications
F; F02; F02N; F02N13/00; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1903079A
Cited
GB197318A
Cited
US1771776A
Cited
US2299464A
Cited
US2045913A
Cited
US2072608A
Cited
US2144196A
Cited
US2189439A
Cited
US2295288A
Cited
US2284358A
Cited
US2400878A
Cited
US2375029A
Cited
US2429863A
Cited
US2454528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |