US3483676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helicopter engine air inlets
Assignee: General Electric Co
•
Filing: 1967-09-29
•
Granted: 1969-12-16
•
Expires: 1987-09-29
Abstract
No abstract record available.
Inventors
- 👤 Donald F Sargisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:22
CPC Classifications
B; B64; B64D; B64D33/00; B64D33/02; F; F02; F02C; F02C7/00; F02C7/04; F02C7/05; F02C7/052; B64D2033/0246; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02A50/2351; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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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 |