Patent US3138499A successfully refreshed from Google Patents.
US3138499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure
Assignee: —
•
Filing: —
•
Granted: 1964-06-23
•
Expires: 1981-06-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:06
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
59 words
A SOLVENTLESS PROCESSED PROPELLANT CONSISTING ESSENTIALLY OF 40-65 PERCENT NITROCELLULOSE, 20-45 PERCENT NITROGLYCERIN, AND 0.1-10 PERCENT OF A BALLISTIC MODIFIER FROM THE CLASS CONSISTING OF (1) COPPER SALTS, NORMAL AND MONOBASIC, OF SALICYLIC, B-RESORCYLIC, 2,5-DIHYDROXYBENZOIC, AND 5-METHYLENE DISALICYLIC ACIDS, AND MIXTURES THEREOF, AND (2) MIXTURES OF THE AFOREMENTIONED COPPER SALTS WITH CORRESPONDING LEAD SALTS MIXTURES OF SUCH LEAD SALTS.
Claim 2
Dependent Claim
59 words
A SOLVENTLESS PROCESSED PROPELLANT CONSISTING ESSENTIALLY OF 40-65 PERCENT NITROCELLULOSE, 20-45 PERCENT NITROGLYCERIN, AND 0.1-10 PERCENT OF A BALLISTIC MODIFIER FROM THE CLASS CONSISTING OF (1) COPPER SALTS, NORMAL AND MONOBASIC, OF SALICYLIC, B-RESORCYLIC, 2,5-DIHYDROXYBENZOIC, AND 5-METHYLENE DISALICYLIC ACIDS, AND MIXTURES THEREOF, AND (2) MIXTURES OF THE AFOREMENTIONED COPPER SALTS WITH CORRESPONDING LEAD SALTS MIXTURES OF SUCH LEAD SALTS.
Claim 3
Dependent Claim
32 words
THE PROPELLANT OF CLAIM 1 CONTAINING AT LEAST ONE SALT OF COPPER AND ONE SALT OF LEAD, IN WHICH HAS BEEN INCORPORATED FROM ABOUT ONE TO ABOUT TEN WEIGHT PERCENT OF ALUMINIUM.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |