US2740702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propellant composition
Assignee: Aerojet Rocketdyne Inc
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Filing: 1945-07-27
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Granted: 1956-04-03
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Expires: 1965-07-27
Abstract
No abstract record available.
Inventors
- 👤 Harry W Mace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:41
CPC Classifications
C; C06; C06B; C06B33/00; C06B33/02; C06B29/00; C06B29/02; C06B29/04; C06B29/06; C06B29/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
AN AMMONIUM PERCHLORATE-ASPHALT BASE PROPELLANT FOR JET PROPULSION MOTORS CONTAINING ABOUT 1% TO 4% BY WEIGHT OF A CATALYTIC COMPOUND COMPOSED OF CHROMIUM SESQUIXOIDE AND A METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF ZNO, FE3O4, SNO2, TIO2, AL2O3 AND CUO, THE AMOUND OF THE METAL KOXIDE BEING UP TO ABOUT 50% BY WEIGHT OF THE MIXTURE.
Claim 2
Dependent Claim
57 words
AN AMMONIUM PERCHLORATE-ASPHALT BASE PROPELLANT FOR JET PROPULSION MOTORS CONTAINING ABOUT 1% TO 4% BY WEIGHT OF A CATALYTIC COMPOUND COMPOSED OF CHROMIUM SESQUIXOIDE AND A METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF ZNO, FE3O4, SNO2, TIO2, AL2O3 AND CUO, THE AMOUND OF THE METAL KOXIDE BEING UP TO ABOUT 50% BY WEIGHT OF THE MIXTURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |