US2861424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel supply means for combustion apparatus
Assignee: Douglas Aircraft Co Inc
•
Filing: 1954-04-09
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Granted: 1958-11-25
•
Expires: 1974-04-09
Abstract
No abstract record available.
Inventors
- 👤 Peter L Jurisich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:07
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/16; F23R3/18; F23R3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB588847A
Cited
US2551112A
Cited
US2535410A
Cited
FR981045A
Cited
US2720078A
Cited
US2646664A
Cited
US2632300A
Cited
US2693083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |