US2737168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection apparatus
Assignee: Pratt and Whitney Co Inc
•
Filing: 1949-10-22
•
Granted: 1956-03-06
•
Expires: 1969-10-22
Abstract
No abstract record available.
Inventors
- 👤 Milton E Chandler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:00
CPC Classifications
F; F02; F02M; F02M41/00; F02M41/08; F02M59/00; F02M59/02; F02M59/04; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1329
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE594336C
Cited
US2156933A
Cited
US2447265A
Cited
GB577007A
Cited
US2384282A
Cited
US2402332A
Cited
US2453329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |