US3065207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer containing tertiary amino radical
Assignee: EIDP Inc
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Filing: 1961-01-30
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Granted: 1962-11-20
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Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Andres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:40
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6856; C08L; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A SYNTHETIC LINEAR CONDENSATION POLYMER SELECTED FROM THE GROUP CONSISTING OF (A) A POLYCARBONAMIDE WHEREIN THE RECURRING AMIDE LINKAGES ARE AN INTEGRAL PART OF THE POLYMER CHAIN, AND (B) A POLYESTER OF A DIOL AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF TEREPHTHALIC ACID AND A MIXTURE OF DICARBOXYLIC ACIDS OF WHICH TEREPHTHALIC ACID COMPRISES AT LEAST ABOUT 90%, SAID CONDENSATION POLYMER HAVING AN INHERENT VISCOSITY OF AT LEAST ABOUT 0.1 AND CONTAINING AS AN INTEGRAL PART OF THE POLYMER CHAIN A DIVALENT RADICAL OF THE FORMULA:
Claim 2
Dependent Claim
88 words
A SYNTHETIC LINEAR CONDENSATION POLYMER SELECTED FROM THE GROUP CONSISTING OF (A) A POLYCARBONAMIDE WHEREIN THE RECURRING AMIDE LINKAGES ARE AN INTEGRAL PART OF THE POLYMER CHAIN, AND (B) A POLYESTER OF A DIOL AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF TEREPHTHALIC ACID AND A MIXTURE OF DICARBOXYLIC ACIDS OF WHICH TEREPHTHALIC ACID COMPRISES AT LEAST ABOUT 90%, SAID CONDENSATION POLYMER HAVING AN INHERENT VISCOSITY OF AT LEAST ABOUT 0.1 AND CONTAINING AS AN INTEGRAL PART OF THE POLYMER CHAIN A DIVALENT RADICAL OF THE FORMULA:
References Cited (Backward Citations)
US2274831A
Cited
US2739958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |