US3400699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preheater unit for an internal combustion engine
Assignee: Ford Motor Co
•
Filing: 1966-06-08
•
Granted: 1968-09-10
•
Expires: 1986-06-08
Abstract
No abstract record available.
Inventors
- 👤 Donald J Van Kirk
- 👤 Charles M Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:22
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/04; F02M31/06; F02M31/08; F02M1/00; F23; F23Q; F23Q7/00; F23Q7/001; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/434; F02M2700/4342; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1451434A
Cited
US2044113A
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US2229714A
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US2856543A
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US3024777A
Cited
US3093126A
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US3338226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |