US2428830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulation of combustion gas turbines arranged in series
Assignee: TURBO ENGINEERING Corp
•
Filing: 1942-04-18
•
Granted: 1947-10-14
•
Expires: 1962-04-18
Abstract
No abstract record available.
Inventors
- 👤 Birmann Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:53
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/165; F02; F02C; F02C9/00; F02C9/48; F02C9/50; F02C9/54; F02K; F02K3/00; F02K3/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB456980A
Cited
US1027698A
Cited
US1766886A
Cited
US1728719A
Cited
US2078958A
Cited
GB367130A
Cited
US2095991A
Cited
US2244467A
Cited
US2305311A
Cited
US2219994A
Cited
US2216731A
Cited
CH210659A
Cited
US2312605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |