Patent US2777524A successfully refreshed from Google Patents.
US2777524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ram air driven turbine
Assignee: Garrett Corp
•
Filing: 1953-06-01
•
Granted: 1957-01-15
•
Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 James E Chapman
- 👤 Charles F Drexel
- 👤 James E Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:20
CPC Classifications
F; F01; F01D; F01D7/00; F03; F03D; F03D7/00; F03D7/02; F03D7/022; F03D7/0224; B; B64; B64D; B64D41/00; B64D41/007; F05; F05B; F05B2220/00; F05B2220/30; F05B2220/31; F05B2260/00; F05B2260/70; F05B2260/74; F05B2260/75; F05B2260/76; F05B2260/77; F05D; F05D2220/00; F05D2220/30; F05D2220/34; F05D2260/00; F05D2260/70; F05D2260/74; F05D2260/75; F05D2260/76; F05D2260/77; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
BE510307A
Cited
US1401651A
Cited
US1636434A
Cited
US1768784A
Cited
US1919586A
Cited
US2054947A
Cited
US2221613A
Cited
US2382229A
Cited
US2294868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |