US2819587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve arrangement for afterburner igniter control
Assignee: RTX Corp
•
Filing: 1950-11-18
•
Granted: 1958-01-14
•
Expires: 1970-11-18
Abstract
No abstract record available.
Inventors
- 👤 Richard J Coar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:23
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/15; F02K1/16; F02K1/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1482467A
Cited
US1994747A
Cited
US2279546A
Cited
CH211134A
Cited
US2626655A
Cited
US2520434A
Cited
US2552231A
Cited
US2640316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |