US3540419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supplemental fuel system
Assignee: Borg Warner Corp
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Filing: 1968-10-01
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Granted: 1970-11-17
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Expires: 1988-10-01
Abstract
No abstract record available.
Inventors
- 👤 Clarence D Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:09
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/06; F02D19/0626; F02D19/0628; F02D19/0631; F02D19/0602; F02D19/0607; F02D19/08; F02D19/10; F02D19/105; F02M; F02M21/00; F02M21/02; F02M21/0218; F02M21/023; F02M21/0239; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |