US2970046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of solid propellants
Assignee: Phillips Petroleum Co
•
Filing: 1954-12-13
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Granted: 1961-01-31
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Expires: 1974-12-13
Abstract
No abstract record available.
Inventors
- 👤 Howard G Cutforth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:51
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/112; Y10S149/113
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN IMPROVED METHOD FOR PRODUCING A SOLID PROPELLANT COMPOSITION WHICH COMPRISES BLENDING FROM 7 TO 200 PARTS BY WEIGHT OF A SUBSTANTIALLY DRY SOLID, INORGANIC, STRONG, OXIDIZING SALT HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN 200 MICRONS WITH ONE PART BY WEIGHT OF A SUBSTANTIALLY DRY BURNING RATE CATALYST SELECTED FROM THE GROUP CONSISTING OF COMPLEX CYANIDES OF IRON, AMMONIUM DICHROMATE, POTASSIUM DICHROMATE, FERRIC OXIDE, AND LEAD DIOXIDE HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN 40 MICRONS; AND INTIMATELY ADMIXING FROM 1 TO 9 PARTS BY WEIGHT OF THE RESULTING OXIDANT-CATALYST BLEND WITH ONE PART BY WEIGHT OF A RUBBERY BINDER COMPOSITION COMPRISING A COPOLYMER PREPARED FROM A MONOMERIC MIXTURE COMPRISING 50 TO 95 PARTS BY WEIGHT OF A CONJUGATED DIENE CONTAINING 4 TO 8 CARBON ATOMS PER MOLECULE, 5 TO 50 PARTS BY WEIGHT OF A
Claim 2
Dependent Claim
139 words
AN IMPROVED METHOD FOR PRODUCING A SOLID PROPELLANT COMPOSITION WHICH COMPRISES BLENDING FROM 7 TO 200 PARTS BY WEIGHT OF A SUBSTANTIALLY DRY SOLID, INORGANIC, STRONG, OXIDIZING SALT HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN 200 MICRONS WITH ONE PART BY WEIGHT OF A SUBSTANTIALLY DRY BURNING RATE CATALYST SELECTED FROM THE GROUP CONSISTING OF COMPLEX CYANIDES OF IRON, AMMONIUM DICHROMATE, POTASSIUM DICHROMATE, FERRIC OXIDE, AND LEAD DIOXIDE HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN 40 MICRONS; AND INTIMATELY ADMIXING FROM 1 TO 9 PARTS BY WEIGHT OF THE RESULTING OXIDANT-CATALYST BLEND WITH ONE PART BY WEIGHT OF A RUBBERY BINDER COMPOSITION COMPRISING A COPOLYMER PREPARED FROM A MONOMERIC MIXTURE COMPRISING 50 TO 95 PARTS BY WEIGHT OF A CONJUGATED DIENE CONTAINING 4 TO 8 CARBON ATOMS PER MOLECULE, 5 TO 50 PARTS BY WEIGHT OF A
References Cited (Backward Citations)
US2742672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |