US2989388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel and propellant composition
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1958-03-17
•
Granted: 1961-06-20
•
Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry A Toulmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:44
CPC Classifications
C; C06; C06B; C06B47/00; C06B31/00; C06B31/28; C06B31/32; C06B31/52; Y; Y10; Y10S; Y10S149/00; Y10S149/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A FUEL OF THE CHARACTER DESCRIBED, COMPRISING THE FOLLOWING MIXTURE IN PARTS BY WEIGH
Claim 2
Dependent Claim
14 words
A FUEL OF THE CHARACTER DESCRIBED, COMPRISING THE FOLLOWING MIXTURE IN PARTS BY WEIGH
References Cited (Backward Citations)
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Cited
US1506322A
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US2159234A
Cited
US2498388A
Cited
US2597641A
Cited
US2622277A
Cited
US2771035A
Cited
US2858289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |