Patent US2758985A successfully refreshed from Google Patents.
US2758985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-alkoxymethyl polycarbonamides stabilized with dicyandiamide
Assignee: EIDP Inc
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Filing: 1953-06-26
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Granted: 1956-08-14
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Expires: 1973-06-26
Abstract
No abstract record available.
Inventors
- 👤 Daniel E Strain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:35
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/315; C08K5/3155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
AN N-ALKOXYMETHYL LINEAR POLYCARBONAMIDE HAVING RECURRING CARBONAMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN, ADMIXED WITH 2.0 TO 15.0% OF ITS WEIGHT OF DICYANDIAMIDE.
Claim 2
Dependent Claim
27 words
AN N-ALKOXYMETHYL LINEAR POLYCARBONAMIDE HAVING RECURRING CARBONAMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN, ADMIXED WITH 2.0 TO 15.0% OF ITS WEIGHT OF DICYANDIAMIDE.
References Cited (Backward Citations)
US2322938A
Cited
US2366492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |