US2611240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
External-combustion engine with water injection
Assignee: Individual
•
Filing: 1948-05-11
•
Granted: 1952-09-23
•
Expires: 1968-05-11
Abstract
No abstract record available.
Inventors
- 👤 Lawrence B Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:40
CPC Classifications
F; F02; F02G; F02G3/00; F01; F01L; F01L1/00; F01L1/12; F01L1/18; F02M; F02M25/00; F02M25/022; F02M25/025; F02M25/028; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S261/00; Y10S261/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1102345A
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US635095A
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US980801A
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US880744A
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US1145389A
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US1236793A
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US1253413A
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US1890651A
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GB368263A
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US2196430A
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US2221185A
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US2199344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |