US2844936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of reheat in turbojet engines
Assignee: National Research Council Canada
•
Filing: 1955-07-15
•
Granted: 1958-07-29
•
Expires: 1975-07-15
Abstract
No abstract record available.
Inventors
- 👤 Howard S Fowler
- 👤 Douglas A J Millar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:06
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/15; F02K1/16; F02K1/17
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) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |