Patent US3878003A successfully refreshed from Google Patents.
US3878003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite double base propellant with HMX oxidizer
Assignee: United States Department of the Army
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Filing: 1960-08-16
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Granted: 1975-04-15
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Expires: 1980-08-16
Abstract
Abstract 1. A solid propellant composition comprising, by weight, 50 percent cyclotetramethylene tetranitramine, 17.7 percent nitrocellulose, 22.1 percent nitroglycerin, 5.2 percent triacetin, 0.5 percent diethylphthalate, 2.0 percent basic lead beta resorcylate, 2.0 percent basic cupric salicylate, 0.5 percent 2-nitrodiphenylamine, and 0.02 percent carbon black.
Inventors
- 👤 Presti Arthur Lo
- 👤 Robert P Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:10
CPC Classifications
C; C06; C06B; C06B25/00; C06B25/34; C06B23/00; C06B23/02; C06B25/18; C06B25/24; C06B25/26; C06B45/00; C06B45/04; C06B45/06; C06B45/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
42 words
A SOLID PROPELLANT COMPOSITION COMPRISING, BY WEIGHT, 50 PERCENT CYCLOTETRAMETHYLENE TETRANITRAMINE, 17.7 PERCENT NITROCELLULOSE, 22.1 PERCENT NITROGLYCERINM 5.2 PERCENT TRIACETIN, 0.5 PERCNT DIETHYLPHTHALATE, 2.0 PERCENT BASIC LEAD BETA RESORCYLATE, 2.0 PERCENT BASIC CUPIC SALICYLATE, 0.5 PERCENT 2-NITRODIPHENYLAMINE, AND 0.02 PERCENT CARBON BLACK.
Claim 2
Dependent Claim
42 words
A SOLID PROPELLANT COMPOSITION COMPRISING, BY WEIGHT, 50 PERCENT CYCLOTETRAMETHYLENE TETRANITRAMINE, 17.7 PERCENT NITROCELLULOSE, 22.1 PERCENT NITROGLYCERINM 5.2 PERCENT TRIACETIN, 0.5 PERCNT DIETHYLPHTHALATE, 2.0 PERCENT BASIC LEAD BETA RESORCYLATE, 2.0 PERCENT BASIC CUPIC SALICYLATE, 0.5 PERCENT 2-NITRODIPHENYLAMINE, AND 0.02 PERCENT CARBON BLACK.
Claim 3
Dependent Claim
71 words
A solid propellant composition comprising, by weight, 56 percent cyclotetramethylene tetranitramine wherein 75 percent of the particles pass a 50 mesh sieve but are retained on a 200 mesh sieve and 25 percent of the particles have an average size of 15 microns, 20 percent nitrocellulose, 15 percent nitroglycerin, 4 percent triacetin, 1 percent 2-nitrodiphenylamine, 2 percent basic lead beta resorcylate, 2 percent basic cupric salicylate, and 0.03 percent carbon black.
Claim 4
Dependent Claim
71 words
A solid propellant composition comprising, by weight, 56 percent cyclotetramethylene tetranitramine wherein 75 percent of the particles pass a 50 mesh sieve but are retained on a 200 mesh sieve and 25 percent of the particles have an average size of 15 microns, 20 percent nitrocellulose, 15 percent nitroglycerin, 4 percent triacetin, 1 percent 2-nitrodiphenylamine, 2 percent basic lead beta resorcylate, 2 percent basic cupric salicylate, and 0.03 percent carbon black.
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |