US2563265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket motor with solid propellant and propellant charge therefor
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1943-09-21
•
Granted: 1951-08-07
•
Expires: 1963-09-21
Abstract
No abstract record available.
Inventors
- 👤 John W Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:12
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/70; B; B64; B64C; B64C35/00; C; C10; C10L; C10L5/00; F02K9/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
45 words
IN COMBINATION WITH A VESSEL FORMING A ROCKET MOTOR COMBUSTION CHAMBER, A THERMOPLASTIC COATING ON THE INTERIOR WALL OF THE CHAMBER, AND A THERMOPLASTIC PROPELLANT CHARGE FILLING THE COATED PORTION OF THE CHAMBER, SAID COATING ADHERING TO THE PROPELLANT CHARGE AND TO THE CHAMBER WALL.
Claim 2
Dependent Claim
45 words
IN COMBINATION WITH A VESSEL FORMING A ROCKET MOTOR COMBUSTION CHAMBER, A THERMOPLASTIC COATING ON THE INTERIOR WALL OF THE CHAMBER, AND A THERMOPLASTIC PROPELLANT CHARGE FILLING THE COATED PORTION OF THE CHAMBER, SAID COATING ADHERING TO THE PROPELLANT CHARGE AND TO THE CHAMBER WALL.
Claim 3
Dependent Claim
51 words
A PROPELLANT COMPOSITION COMPRISING A MIXTURE OF A SOLID OXIDIZER AND THERMOPLASTIC FUEL, THE OXIDIZER BEING FROM ABOUT 50% TO 90% BY WEIGHT OF THE COMPOSITION, THE THERMOPLASTIC FUEL CONSISTING OF A MIXTURE OF ASPHALT AND S. A. E. NO. 10 OIL, THE OIL BEING ABOUT 15% OF THE ASPHALT-OIL MIXTURE.
Claim 4
Dependent Claim
51 words
A PROPELLANT COMPOSITION COMPRISING A MIXTURE OF A SOLID OXIDIZER AND THERMOPLASTIC FUEL, THE OXIDIZER BEING FROM ABOUT 50% TO 90% BY WEIGHT OF THE COMPOSITION, THE THERMOPLASTIC FUEL CONSISTING OF A MIXTURE OF ASPHALT AND S. A. E. NO. 10 OIL, THE OIL BEING ABOUT 15% OF THE ASPHALT-OIL MIXTURE.
References Cited (Backward Citations)
GB125128A
Cited
US294978A
Cited
GB189710362A
Cited
US659842A
Cited
US1041745A
Cited
US1211721A
Cited
US1102653A
Cited
GB191502172A
Cited
FR477678A
Cited
GB191514932A
Cited
FR502560A
Cited
US1670689A
Cited
US1879579A
Cited
US1924435A
Cited
US1958803A
Cited
US2043268A
Cited
GB453210A
Cited
US2103237A
Cited
US2186667A
Cited
US2172163A
Cited
US2231769A
Cited
US2278847A
Cited
US2293249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |