US3749757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siloxane modified polyester fiber containing elastomer
Assignee: Owens Corning
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Filing: 1971-03-29
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Granted: 1973-07-31
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Expires: 1991-03-29
Abstract
Abstract THIS INVENTION IS ADDRESSED TO IMPROVED POLYESTERS WHICH ARE PARTICULARLY WELL SUITED FOR USE AS REINFORCEMENTS FOR ELASTOMERIC MATERIAL IN THE MANUFACTURE OF POLYESTER FIBER-REINFORCED ELASTOMERIC PRODUCTS IN WHICH THE POLYESTER IS FORMED OF A POLYCARBOXYLIC ACID, A POLYOL AND A POLYSILOXANE WHICH CONTAINS AT LEAST ONE FUNCTIONAL GROUP WHICH IS REACTIVE TO ONE OF THE ACID OR POLYOL MONOMERIC COMPONENTS.
Inventors
- 👤 A Marzocchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:44
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/046; C08G; C08G63/00; C08G63/68; C08J2321/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |