US3709710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium dioxide pigments useful in delustring of polyamides
Assignee: Individual
•
Filing: 1970-09-02
•
Granted: 1973-01-09
•
Expires: 1990-09-02
Abstract
Abstract POLYAMIDE COMPOSITIONS COMPRISING A SYNTHETIC LINEAR FIBER-FORMING POLYAMIDE, A DELUSTRING AGENT (ESPECIALLY TITANIUM DIOXIDE) A MAANGANESE COMPOUND AND AN ANTIMONY COMPOUND AND OPTIONALLY A COPPER COMPOUND AND A HALIDE OR APHENOL AND HYPOPHOSPHOROUS AID OR A SALT THEREOF; PROCESSES FOR THEIR MANUFATURE AND TITANIUM DIOXIDE PIGMENTS SUITABLE FOR USE IN THEIR MANUFACTURE CONTAINING CHEMICALLY COMBINED ANTIMONY AND HAVING A COAING CONTANING CHEMICALLY COMBINED MANGANESE.
Inventors
- 👤 D Lawrance
- 👤 G Lederer
- 👤 O Edgar
- 👤 W Hughes
- 👤 C Ritchie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:19
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/02
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |