US2765779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine construction
Assignee: JUSTIN W MACKLIN
•
Filing: 1951-11-09
•
Granted: 1956-10-09
•
Expires: 1971-11-09
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Graves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:46
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0043; F02F7/0046; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18208
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1114554A
Cited
US1299554A
Cited
US1909956A
Cited
US1966905A
Cited
US2190394A
Cited
US2307926A
Cited
US2394675A
Cited
US2371797A
Cited
US2590134A
Cited
US2496449A
Cited
US2525131A
Cited
US2584289A
Cited
US2570424A
Cited
US2560244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |