US3058302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means inducing a flow of cooling air for gas turbine engines
Assignee: Avro Aircraft Ltd
•
Filing: 1955-02-07
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Granted: 1962-10-16
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Expires: 1975-02-07
Abstract
No abstract record available.
Inventors
- 👤 Knzyk William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:30
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/36; F02C; F02C7/00; F02C7/12; F02C7/16; F02C7/18; F02K1/78; F02K1/82; F02K1/822; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229
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) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |