US2804822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for rocket motors
Assignee: Individual
•
Filing: 1952-11-19
•
Granted: 1957-09-03
•
Expires: 1972-11-19
Abstract
No abstract record available.
Inventors
- 👤 Hugo A Meneghelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:33
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/08; F02K9/32; F02K9/38; F02K9/80; F02K9/92; F42; F42B; F42B39/00; F42B39/14
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |