US2426239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket shell
Assignee: Individual
•
Filing: 1942-12-28
•
Granted: 1947-08-26
•
Expires: 1962-12-28
Abstract
No abstract record available.
Inventors
- 👤 Henry M Renner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:42
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/02; F42B5/10; F42B10/00; F42B10/02; F42B10/26; F42B10/28; F42B10/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US46490A
Cited
US229499A
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US263407A
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GB191210325A
Cited
GB191512036A
Cited
US1257126A
Cited
US1347125A
Cited
US1817377A
Cited
FR711464A
Cited
US1879840A
Cited
US1994490A
Cited
FR820266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |