US3103458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making nitrocellulose pro-
Assignee: —
•
Filing: —
•
Granted: 1963-09-10
•
Expires: 1980-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:55
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR MAKING DOUBLE-BASE PROPELLANT GRAINS WHICH CONTAIN FROM ABOUT 40% TO ABOUT 65% NITROCELLULOSE AND FROM ABOUT 30-45% NITROGLYCERIN AND AT LEAST 5% OF A DINTRILE CONTAINING UP TO TEN CARBON ATOMS WHICH CONSISTS ESSENTIALLY OF THOROUGHLY MIXING THE PROPELLANT INGREDIENTS WITH AN AMOUNT EQUAL TO ABOUT 80% OF THE WEIGHT OF THE NITROCELLULOSE, OF A MIXTURE OF ABOUT 65 PARTS OF ACETONE AND ABOUT 35 PARTS OF ETHYL ALCOHOL, BY WEIGHT, ADDING DIETHYL ETHER TO THE FORMED MIXTURE IN AN AMOUNT EQUAL TO ABOUT 25 TO ABOUTT 100% OF THE WEIGHT OF THE NITROCELLULOSE, EXTRUDING THE RESULTING FORMULATION INTO THE DESIRED SHAPE, AND DRYING THE EXTRUDED PRODUCT.
Claim 2
Dependent Claim
110 words
A PROCESS FOR MAKING DOUBLE-BASE PROPELLANT GRAINS WHICH CONTAIN FROM ABOUT 40% TO ABOUT 65% NITROCELLULOSE AND FROM ABOUT 30-45% NITROGLYCERIN AND AT LEAST 5% OF A DINTRILE CONTAINING UP TO TEN CARBON ATOMS WHICH CONSISTS ESSENTIALLY OF THOROUGHLY MIXING THE PROPELLANT INGREDIENTS WITH AN AMOUNT EQUAL TO ABOUT 80% OF THE WEIGHT OF THE NITROCELLULOSE, OF A MIXTURE OF ABOUT 65 PARTS OF ACETONE AND ABOUT 35 PARTS OF ETHYL ALCOHOL, BY WEIGHT, ADDING DIETHYL ETHER TO THE FORMED MIXTURE IN AN AMOUNT EQUAL TO ABOUT 25 TO ABOUTT 100% OF THE WEIGHT OF THE NITROCELLULOSE, EXTRUDING THE RESULTING FORMULATION INTO THE DESIRED SHAPE, AND DRYING THE EXTRUDED PRODUCT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |