US3455182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helicopter lift augmentation means
Assignee: Garrett Corp
•
Filing: 1967-04-12
•
Granted: 1969-07-15
•
Expires: 1987-04-12
Abstract
No abstract record available.
Inventors
- 👤 Archibald P Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:31
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/04; B64C27/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US979003A
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GB793782A
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US3020716A
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US2979968A
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US3129608A
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US3214998A
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US3290963A
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US3196612A
Cited
US3325122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |