US2589505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump injector for oil engines
Assignee: RA Lister and Co Ltd
•
Filing: 1947-10-09
•
Granted: 1952-03-18
•
Expires: 1967-10-09
Abstract
No abstract record available.
Inventors
- 👤 Morris Alberto Jorge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:35
CPC Classifications
F; F02; F02M; F02M49/00; F02M49/02; F02M59/00; F02M59/02; F02M59/10; F02M59/107; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1341
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191308714A
Cited
GB395175A
Cited
US1990714A
Cited
US2190051A
Cited
US2144861A
Cited
US2206027A
Cited
US2371787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |