US2693080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gas turbine
Assignee: TURBEX CORP
•
Filing: 1950-09-13
•
Granted: 1954-11-02
•
Expires: 1970-09-13
Abstract
No abstract record available.
Inventors
- 👤 David W Hutchinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:33
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/28; F02C3/00; F02C3/04; F02C3/107; F02C3/113; F02C7/00; F02C7/04; F02C7/08; F02C7/36; F05; F05D; F05D2220/00; F05D2220/30; F05D2220/32; F05D2220/324
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |