US2474685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet propulsion apparatus
Assignee: Stewart Warner Corp
•
Filing: 1945-04-12
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Granted: 1949-06-28
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Expires: 1965-04-12
Abstract
No abstract record available.
Inventors
- 👤 Mccollum Thelma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:36
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/005; B; B64; B64C; B64C11/00; B64D; B64D11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1546313A
Cited
GB267151A
Cited
FR648107A
Cited
FR705003A
Cited
US2292589A
Cited
US2356746A
Cited
US2397357A
Cited
US2438151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |