US3483700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual fuel injection system for gas turbine engine
Assignee: Caterpillar Inc
•
Filing: 1967-09-27
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Granted: 1969-12-16
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Expires: 1987-09-27
Abstract
No abstract record available.
Inventors
- 👤 John G Ryberg
- 👤 Donald E Tjarksen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:02
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/28; F23R3/36; F23D; F23D2204/00; F23D2204/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2344936A
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US3067582A
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US3236279A
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US3174527A
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US3285316A
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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) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |