Patent US2917424A successfully refreshed from Google Patents.
US2917424A
Expired / Lapsed
US
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Method of restricting the burning of a solid propellant charge
Assignee: Aerojet Rocketdyne Inc
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Filing: 1950-06-17
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Granted: 1959-12-15
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Expires: 1970-06-17
Abstract
No abstract record available.
Inventors
- 👤 Robert L Hirsch
- 👤 Clyde F Miller
- 👤 Bellin Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:28
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/32; F02K9/34; F02K9/346
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
THE METHOD OF RESTRICTING THE BURNING OF A THERMOSETTING ALKYD-VINYL RESIN AND INORGANIC PERCHLORATE PROPELLENT CHARGE COMPRISING DIPPING THE CHARGE IN A BATH CONSISTING OF A MIXTURE OF THERMOPLASTIC RESINS, ONE RESIN BEING THE CONDENSATION PRODUCT OF ETHYLENE DIAMINE WITH AN ACID SELECTED FROM THE GROUP CONSISTING OF LINOELEIC OR LINOLENIC ACID, AND GLYCEROL SEBACATE MODIFIED WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF SATURATED FATTY ACIDS, ACIDS OF LOW DEGREE OF UNSATURATION, AND NON-DRYING VEGETABLE OILS, SAID BATH HAVING BEEN HEATED TO A TEMPERATURE OF 360*F. TO 400*F. PERMITTING
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) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |