US3390527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High bypass ratio turbofan
Assignee: Avco Corp
•
Filing: 1967-07-19
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Granted: 1968-07-02
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Expires: 1987-07-19
Abstract
No abstract record available.
Inventors
- 👤 Siegfried H Decher
- 👤 Dale H Rauch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:16
CPC Classifications
F; F02; F02K; F02K3/00; F02K3/02; F02K3/04; F02K3/06; F01; F01D; F01D5/00; F01D5/02; F01D5/022; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |