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Patent US3369012A successfully refreshed from Google Patents.
US3369012A
Expired / Lapsed
US
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Polymers containing dihalocyclopropane units
Assignee: Union Carbide Corp
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Filing: 1963-01-16
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Granted: 1968-02-13
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Expires: 1983-01-16
Abstract
No abstract record available.
Inventors
- 👤 Lundberg Robert Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:06
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/12; C08C19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
TOUGH, MOLDABLE, FLAME RETARDANT POLYMERS CONTAINING AT LEAST 50 PERCENT BY WEIGHT OF RECURRING UNITS HAVING THE STRUCTURE
Claim 2
Dependent Claim
18 words
TOUGH, MOLDABLE, FLAME RETARDANT POLYMERS CONTAINING AT LEAST 50 PERCENT BY WEIGHT OF RECURRING UNITS HAVING THE STRUCTURE
References Cited (Backward Citations)
GB871320A
Cited
US3044999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |