Patent US2985526A successfully refreshed from Google Patents.
US2985526A
Expired / Lapsed
US
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Composite rubber base propellants and process of preparation employing nonsulfur metallic curing agents
Assignee: Phillips Petroleum Co
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Filing: 1956-11-19
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Granted: 1961-05-23
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Expires: 1976-11-19
Abstract
No abstract record available.
Inventors
- 👤 Eugene D Guth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:57
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A SOLID PROPELLANT CONSISTING ESSENTIALLY OF ABOUT 50 TO ABOUT 90 WEIGHT PERCENT OF A SOLID OXIDIZER ADMIXED WITH ABOUT 10 TO ABOUT 50 WEIGHT PERCENT OF A SELF-CURING BINDER CONSISTING ESSENTIALLY OF A RUBBERY CONJUGATED DIENE-HETEROCYCLIC NITROGEN BASE COPOLYMER, SAID DIENE BEING LIMITED TO THE RANGE OF 4 TO 6 CARBON ATOMS PER MOLECULE AND SAID NITROGEN BASE BEING SELECTED FROM THE GROUP CONSISTING OF PYRIDINES, QUINOLINES, AND ISOQUINOLINES HAVING ONLY ONE
Claim 2
Dependent Claim
73 words
A SOLID PROPELLANT CONSISTING ESSENTIALLY OF ABOUT 50 TO ABOUT 90 WEIGHT PERCENT OF A SOLID OXIDIZER ADMIXED WITH ABOUT 10 TO ABOUT 50 WEIGHT PERCENT OF A SELF-CURING BINDER CONSISTING ESSENTIALLY OF A RUBBERY CONJUGATED DIENE-HETEROCYCLIC NITROGEN BASE COPOLYMER, SAID DIENE BEING LIMITED TO THE RANGE OF 4 TO 6 CARBON ATOMS PER MOLECULE AND SAID NITROGEN BASE BEING SELECTED FROM THE GROUP CONSISTING OF PYRIDINES, QUINOLINES, AND ISOQUINOLINES HAVING ONLY ONE
References Cited (Backward Citations)
US2395506A
Cited
US2561814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |