Patent US3431235A successfully refreshed from Google Patents.
US3431235A
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Polydiene resins including cyclized polydiene resins,method of manufacture and uses
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1966-03-02
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Granted: 1969-03-04
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Expires: 1986-03-02
Abstract
No abstract record available.
Inventors
- 👤 Hyman R Lubowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:27
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/12; C08C; C08C19/00; C08C19/30; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69; C08G63/00; C08G69/00; C08L; C08L63/00; Y; Y10; Y10S; Y10S525/00; Y10S525/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA589950A
Cited
CA676047A
Cited
CA677255A
Cited
US2439514A
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US2877212A
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US2968647A
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US3055952A
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US3135716A
Cited
US3147313A
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GB957788A
Cited
US3084141A
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FR1315354A
Cited
US3203944A
Cited
US3338861A
Cited
US3285949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |