US3308210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making propellent supports
Assignee: Atlantic Research Corp
•
Filing: 1963-01-16
•
Granted: 1967-03-07
•
Expires: 1983-01-16
Abstract
No abstract record available.
Inventors
- 👤 Martha L Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:39
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/32; F02K9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A PROCESS FOR INTERNALLY SUPPORTING AGAINST SLUMPING A PERFORATED SOLID PROPELLANT GRAIN COMPRISING INTRODUCING A COMPOSITION CAPABLE OF BEING FOAMED INTO A RIGID CELLULAR ORGANIC PLASTIC STRUCTURE INTO THE PERFORATION OF A SOLID PROPELLANT GRAIN SUBJECT TO VISCOELASTIC FLOW UNDER GRAVITATIONAL FORCES AND FOAMING SAID COMPOSITION IN SITU TO FORM AN EXPANDED RIGID SUPPORT CONFORMING ESSENTIALLY TO THE DIMENSIONS OF SAID PERFORATION.
Claim 2
Dependent Claim
62 words
A PROCESS FOR INTERNALLY SUPPORTING AGAINST SLUMPING A PERFORATED SOLID PROPELLANT GRAIN COMPRISING INTRODUCING A COMPOSITION CAPABLE OF BEING FOAMED INTO A RIGID CELLULAR ORGANIC PLASTIC STRUCTURE INTO THE PERFORATION OF A SOLID PROPELLANT GRAIN SUBJECT TO VISCOELASTIC FLOW UNDER GRAVITATIONAL FORCES AND FOAMING SAID COMPOSITION IN SITU TO FORM AN EXPANDED RIGID SUPPORT CONFORMING ESSENTIALLY TO THE DIMENSIONS OF SAID PERFORATION.
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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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |