Patent US3245962A successfully refreshed from Google Patents.
US3245962A
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Nu-nitro substituted, nitro containing polyurethanes
Assignee: Aerojet Rocketdyne Inc
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Filing: 1963-04-22
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Granted: 1966-04-12
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Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 James R Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:56
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/384; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B45/105; C08G18/08; C08G18/16; C08G18/166; C08G18/22; C08G18/222; C08G18/3823; C08G18/3825; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/7868; C08G18/83; C08G18/833
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AS COMPOSITIONS OF MATTER, THE NITRO POLYURETHANES CONTAINING THE STRUCTURAL UNIT:
Claim 2
Dependent Claim
11 words
AS COMPOSITIONS OF MATTER, THE NITRO POLYURETHANES CONTAINING THE STRUCTURAL UNIT:
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |