US2828728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection systems
Assignee: Ambac International Corp
•
Filing: 1955-04-22
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Granted: 1958-04-01
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Expires: 1975-04-22
Abstract
No abstract record available.
Inventors
- 👤 Carl H Nystrom
- 👤 Edward M Bach
- 👤 Arthur E Huse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:42
CPC Classifications
F; F02; F02M; F02M69/00; F02M2700/00; F02M2700/43; F02M2700/4397
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2245562A
Cited
FR869871A
Cited
US2455571A
Cited
US2542389A
Cited
US2624284A
Cited
US2624327A
Cited
US2667840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |