US3230281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New process for casting rocket propellant grains
Assignee: Individual
•
Filing: 1964-03-10
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Granted: 1966-01-18
•
Expires: 1984-03-10
Abstract
No abstract record available.
Inventors
- 👤 John W Carroz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:05
CPC Classifications
C; C06; C06B; C06B45/00; C06B21/00; C06B21/0033; C06B23/00; C06B23/001; C06B47/00; C06B47/02; C06B47/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
THE PROCESS FOR CASTING A PROPELLANT GRAIN CONSISTING ESSENTIALLY OF HYDRAZINE COMPRISING: (A) FORMING A SCREEN WIRE SKELETON WITHIN A CONTAINER; (B) CASTING GELLED HYDRAZINE AT ABOUT 32*F. AROUND SAID SKELETON; AND (C) CURING AT ROOM TEMPERATURE FOR ABOUT TWO WEEKS.
Claim 2
Dependent Claim
41 words
THE PROCESS FOR CASTING A PROPELLANT GRAIN CONSISTING ESSENTIALLY OF HYDRAZINE COMPRISING: (A) FORMING A SCREEN WIRE SKELETON WITHIN A CONTAINER; (B) CASTING GELLED HYDRAZINE AT ABOUT 32*F. AROUND SAID SKELETON; AND (C) CURING AT ROOM TEMPERATURE FOR ABOUT TWO WEEKS.
References Cited (Backward Citations)
US2995091A
Cited
US3077072A
Cited
US3035950A
Cited
US3183665A
Cited
US3176618A
Cited
US3164505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |