US3776806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament comprising a polymer blend of polyester and polyamide containing an organic phosphorus compound
Assignee: Honeywell International Inc
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Filing: 1972-05-24
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Granted: 1973-12-04
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Expires: 1992-05-24
Abstract
Abstract A PROCESS FOR INCREASING THE WHITENESS OF A FILAMENT EXTRUDED FROM A POLYMER BLEND COMPRISED OF POLYESTER AND POLYAMIDE WHICH COMPRISES INCORPORATING IN THE POLYMER BLEND PRIOR TO EXTRUSION THEREOF A SMALL AMOUNT OF AN ORGANIC PHOSPHORUS COMPOUND WHICH CAN BE AN ORGANIC PHOSPHITE, PHOSPHINATE, PHOSPHATE, POLYMERIC PHOSPHITE, POLYMERIC PHOSPHATE, THE CORRESPONDING ACID, OR MIXTURES THEREOF.
Inventors
- 👤 R Mayer
- 👤 G Weedon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:52
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08L; C08L67/00; C08L67/02; C08L77/00; C08L77/02; Y; Y10; Y10S; Y10S428/00; Y10S428/903; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T442/00; Y10T442/30; Y10T442/3065; Y10T442/3146
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |