US2801790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor blading
Assignee: RTX Corp
•
Filing: 1950-06-21
•
Granted: 1957-08-06
•
Expires: 1970-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter Doll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:30
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/66; F04D29/68; F04D29/681; F04D29/40; F04D29/52; F04D29/54; F04D29/541; F04D29/542; F04D29/544; Y; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1317707A
Cited
US1398461A
Cited
US1771023A
Cited
US2355413A
Cited
US2450745A
Cited
US2415847A
Cited
US2446552A
Cited
US2435236A
Cited
US2473329A
Cited
US2460778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |