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US2958288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
campbell
Assignee: —
•
Filing: —
•
Granted: 1960-11-01
•
Expires: 1977-11-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:41
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A SOLID PROPELLANT CHARGE HAVING A POLYMERIZED POLYSTER-STYRENE MIXTURE HAVING DISPERSED IN IT A SOLID INORGANIC OXIDIZER, AND A LINER ADHERENT TO A SURFACE OF SAID CHARGE, SAID LINER COMPRISING A MIXTURE OF A POLYESTER RESIN AND STYRENE CONTAINING A UNIFORMLY DISTRIBUTED CHEMICALLY INERT FILLER, THE RESIN IN SAID LINER BEING COPOLYMERIZED TO THE SURFACE OF SAID PROPELLANT CHARGE THEREBY FORMING A SOLID LINER TENACIOUSLY ADHERENT TO THE SURFACE.
Claim 2
Dependent Claim
69 words
A SOLID PROPELLANT CHARGE HAVING A POLYMERIZED POLYSTER-STYRENE MIXTURE HAVING DISPERSED IN IT A SOLID INORGANIC OXIDIZER, AND A LINER ADHERENT TO A SURFACE OF SAID CHARGE, SAID LINER COMPRISING A MIXTURE OF A POLYESTER RESIN AND STYRENE CONTAINING A UNIFORMLY DISTRIBUTED CHEMICALLY INERT FILLER, THE RESIN IN SAID LINER BEING COPOLYMERIZED TO THE SURFACE OF SAID PROPELLANT CHARGE THEREBY FORMING A SOLID LINER TENACIOUSLY ADHERENT TO THE SURFACE.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |