US3249475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polybutadiene rocket propellant compositions
Assignee: Individual
•
Filing: 1952-07-22
•
Granted: 1966-05-03
•
Expires: 1972-07-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Jorczak
- 👤 John M Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:26
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A ROCKET PROPELLENT GRAIN CONSISTING ESSENTIALLY OF A HOMOGENEOUS ELASTOMERIC MIXTURE IN CURED SOLID STATE OF ABOUT 30% POLYBUTADIENE AND ABOUT 66% OF AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF INORGANIC SALTS OF NITRIC ACID, INORGANIC SALTS OF PERCHLORIC ACID, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
45 words
A ROCKET PROPELLENT GRAIN CONSISTING ESSENTIALLY OF A HOMOGENEOUS ELASTOMERIC MIXTURE IN CURED SOLID STATE OF ABOUT 30% POLYBUTADIENE AND ABOUT 66% OF AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF INORGANIC SALTS OF NITRIC ACID, INORGANIC SALTS OF PERCHLORIC ACID, AND MIXTURES THEREOF.
References Cited (Backward Citations)
GB189417994A
Cited
FR437228A
Cited
US2360867A
Cited
GB579057A
Cited
US2468027A
Cited
US2563265A
Cited
US2479470A
Cited
US2539404A
Cited
GB655585A
Cited
US2479828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |