Patent US3762972A successfully refreshed from Google Patents.
US3762972A
Expired / Lapsed
US
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Reaction product of phosphine oxide with carboxylic acids
Assignee: United States Department of the Army
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Filing: 1969-07-30
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Granted: 1973-10-02
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Expires: 1989-07-30
Abstract
Abstract THE REACTION PRODUCTS OF DI- OR TRI- FUNCTIONAL AZIRIDINYL PHOSPHINE OXIDES OR THEIR DERIVATIVES WITH POLYFUNCTIONAL CARBOXYLIC ACIDS, AND THE COMBINATION OF THE REACTION PRODUCTS WITH OTHER PROPELLANT INGREDIENTS SUCH AS INORGANIC OXIDIZER, BINDER, PLASTICIZER, METAL FUEL AND ETC.
Inventors
- 👤 H Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:21
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/44; C06; C06B; C06B23/00; C06B23/001; C06B45/00; C06B45/18; C06B45/30; C06B45/32; C07F9/547; C07F9/553; C07F9/564; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69
Claims Analysis
Total Claims: 0
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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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |