Patent US2948707A successfully refreshed from Google Patents.
US2948707A
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Isocyanate-based polymers containing at least two different types of polymeric segments
Assignee: EIDP Inc
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Filing: 1955-09-14
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Granted: 1960-08-09
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Expires: 1975-09-14
Abstract
No abstract record available.
Inventors
- 👤 Anthony F Benning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:39
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69; C08G18/696; C08G18/08; C08G18/10; C08G18/12; Y; Y10; Y10S; Y10S528/00; Y10S528/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A SEGMENTED, ISOCYANATE-BASED POLYMER, CONTAINING AT LEAST TWO DIFFERENT CLASSES OF POLYMERIC RADICALS, SAID POLYMER CONSISTING ESSENTIALLY OF INTERCONNECTED UNITS HAVING THE FORMULA:
Claim 2
Dependent Claim
23 words
A SEGMENTED, ISOCYANATE-BASED POLYMER, CONTAINING AT LEAST TWO DIFFERENT CLASSES OF POLYMERIC RADICALS, SAID POLYMER CONSISTING ESSENTIALLY OF INTERCONNECTED UNITS HAVING THE FORMULA:
References Cited (Backward Citations)
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US2814606A
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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) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |