US3000714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propellant compositions
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1953-12-21
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Granted: 1961-09-19
•
Expires: 1973-12-21
Abstract
No abstract record available.
Inventors
- 👤 George W Batchelder
- 👤 Gilbert A Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:52
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/007; C06B45/00; C06B45/04; C06B45/06; C06B45/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A SOLID PROPELLANT COMPOSITION COMPRISING A CURED INTIMATE MIXTURE OF AMMONIUM PERCHLORATE AND A POLYESTER RESIN CONSISTING OF THE CONDENSATION PRODUCT OF DIETHYLENE GLYCOL, ADIPIC ACID, AND MALEIC ANHYDRIDE, HETEROPOLYMERIZED WITH N-BUTYL ACRYLATE AND METHYL ACRYLATE, SAID AMMONIUM PERCHLORATE BEING PRESENT IN AN AMOUNT OF FROM ABOUT 45% TO ABOUT 90% AND SAID POLYESTER RESIN BEING PRESENT IN AN AMOUNT OF FROM ABOUT 55% TO ABUT 10% AND A MIXTURE OF FROM ABOUT 1.0% TO ABOUT 50% BY WEIGHT OF AMMONIUM DICHROMATE AND FROM ABOUT 99% TO ABOUT 50% BY WEIGHT OF ETHYL SILICATE IN AN AMOUNT OF 2.0% BY WEIGHT OF THE TOTAL PROPELLANT COMPOSITION.
Claim 2
Dependent Claim
106 words
A SOLID PROPELLANT COMPOSITION COMPRISING A CURED INTIMATE MIXTURE OF AMMONIUM PERCHLORATE AND A POLYESTER RESIN CONSISTING OF THE CONDENSATION PRODUCT OF DIETHYLENE GLYCOL, ADIPIC ACID, AND MALEIC ANHYDRIDE, HETEROPOLYMERIZED WITH N-BUTYL ACRYLATE AND METHYL ACRYLATE, SAID AMMONIUM PERCHLORATE BEING PRESENT IN AN AMOUNT OF FROM ABOUT 45% TO ABOUT 90% AND SAID POLYESTER RESIN BEING PRESENT IN AN AMOUNT OF FROM ABOUT 55% TO ABUT 10% AND A MIXTURE OF FROM ABOUT 1.0% TO ABOUT 50% BY WEIGHT OF AMMONIUM DICHROMATE AND FROM ABOUT 99% TO ABOUT 50% BY WEIGHT OF ETHYL SILICATE IN AN AMOUNT OF 2.0% BY WEIGHT OF THE TOTAL PROPELLANT COMPOSITION.
References Cited (Backward Citations)
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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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |