US2519968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel system
Assignee: RTX Corp
•
Filing: 1946-02-08
•
Granted: 1950-08-22
•
Expires: 1966-02-08
Abstract
No abstract record available.
Inventors
- 👤 Donald J Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:01
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02; B64D37/14; B64D37/20; F; F02; F02B; F02B1/00; F02M; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/438; F02M2700/4388; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/4857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1335093A
Cited
US1412568A
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GB102732A
Cited
FR503356A
Cited
US1329997A
Cited
US1665060A
Cited
US1776877A
Cited
US2142062A
Cited
US2170136A
Cited
US2366654A
Cited
US2394431A
Cited
US2356200A
Cited
US2409245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |