US3051212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced composite structures
Assignee: EIDP Inc
•
Filing: 1959-06-26
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Granted: 1962-08-28
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Expires: 1979-06-26
Abstract
No abstract record available.
Inventors
- 👤 William W Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:44
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/0042; B29; B29D; B29D29/00; C; C08; C08G; C08G63/00; C08G63/68; C08G63/78; C08G63/80; C08J; C08J5/00; C08J5/04; C08J5/046; C08L; C08L67/00; C08L67/02; D; D01; D01F; D01F6/00; D01F6/58; D01F6/62; C08J2321/00; Y; Y10; Y10S; Y10S57/00; Y10S57/902
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
71 words
A COMPOSTIE STRUCTURE COMPRISING A RUBBER ARTICLE HAVING INCORPORATED THEREIN REINFORCING FIBERS PREPARED FROM A LINEAR TEREPHTHALATE POLYESTE RHAVING A RELATIVE VISCOSITY OF AT LEAST 25, SAID FIBERS HAVING A CONCENTRATION OF FREE CARBOXYL GROUPS OF LESS THAN 15 EQUIVALENTS PER MILLION GRAMS, AN ETHER CONCENTRATION OF NOT MORE THAN 3 MOL PERCENT, A TENACITY ABOVE 6 GRAMS PER DENIER, AND AN INITIAL MODULUS OF AT LEAST 80 GRAMS PER DENIER.
Claim 2
Dependent Claim
71 words
A COMPOSTIE STRUCTURE COMPRISING A RUBBER ARTICLE HAVING INCORPORATED THEREIN REINFORCING FIBERS PREPARED FROM A LINEAR TEREPHTHALATE POLYESTE RHAVING A RELATIVE VISCOSITY OF AT LEAST 25, SAID FIBERS HAVING A CONCENTRATION OF FREE CARBOXYL GROUPS OF LESS THAN 15 EQUIVALENTS PER MILLION GRAMS, AN ETHER CONCENTRATION OF NOT MORE THAN 3 MOL PERCENT, A TENACITY ABOVE 6 GRAMS PER DENIER, AND AN INITIAL MODULUS OF AT LEAST 80 GRAMS PER DENIER.
Claim 3
Dependent Claim
47 words
A TEXTILE YARN COMPRISED OF FILAMENTS OF A LINEAR TEREPHTHALATE POLYESTER HAVING A RELATIVE VISCOSITY OF AT LEAST 25, SAID FILAMENTS HAVING A CONCENTRATION OF FREE CARBOXYL GROUPS OF LESS THAN 15 EQUIVALENTS PER MILLION GRAMS AND AN ETHER CONCENTRATION OF NOT MORE THAN 3 MOL PERCENT.
Claim 4
Dependent Claim
47 words
A TEXTILE YARN COMPRISED OF FILAMENTS OF A LINEAR TEREPHTHALATE POLYESTER HAVING A RELATIVE VISCOSITY OF AT LEAST 25, SAID FILAMENTS HAVING A CONCENTRATION OF FREE CARBOXYL GROUPS OF LESS THAN 15 EQUIVALENTS PER MILLION GRAMS AND AN ETHER CONCENTRATION OF NOT MORE THAN 3 MOL PERCENT.
References Cited (Backward Citations)
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Cited
US2863855A
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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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |