US2424610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating combustion apparatus
Assignee: DANIEL AND FLORENCE GUGGENHEIM
•
Filing: 1943-04-12
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Granted: 1947-07-29
•
Expires: 1963-04-12
Abstract
No abstract record available.
Inventors
- 👤 Robert H Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:17
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/14; F02C3/16; F02C3/165; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/62; F02K9/66; Y; Y10; Y10S; Y10S60/00; Y10S60/915; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7832; Y10T137/8593; Y10T137/86928
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) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |