Patent US2548804A successfully refreshed from Google Patents.
US2548804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet propulsion apparatus
Assignee: Stewart Warner Corp
•
Filing: 1945-03-23
•
Granted: 1951-04-10
•
Expires: 1965-03-23
Abstract
No abstract record available.
Inventors
- 👤 Mccollum Thelma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:32
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/005; B; B64; B64C; B64C11/00; B64D; B64D11/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR339847A
Cited
US1099083A
Cited
US1463784A
Cited
GB227151A
Cited
US1725914A
Cited
FR705003A
Cited
US1932702A
Cited
US2243467A
Cited
US2292288A
Cited
US2253809A
Cited
US2330056A
Cited
US2303381A
Cited
US2397357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |