US2423728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine control system
Assignee: General Controls Co
•
Filing: 1943-11-08
•
Granted: 1947-07-08
•
Expires: 1963-11-08
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:31
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/08; F02D; F02D17/00; F02D17/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE16801E
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US2013294A
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US1339798A
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US1461662A
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US1960432A
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US1896459A
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US2010960A
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US2210044A
Cited
US2208299A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |