US2597987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat and light stabilized vinyl resins and compositions thereof
Assignee: Union Carbide Corp
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Filing: 1950-03-24
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Granted: 1952-05-27
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Expires: 1970-03-24
Abstract
No abstract record available.
Inventors
- 👤 Harding James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:32
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C08K3/10; C08K3/105; C08K3/32; C08K3/34; C08K5/00; C08K5/56; C08K5/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
RESINOUS COMPOSITION COMPRISING A VINYL CHLORIDE RESIN HAVING A REFRACTIVE INDEX VALUE BETWEEN 1.51 AND 1.53 AND DISPERSED IN SAID RESIN AS A HEAT-STABILIZER THEREFOR A HYDROCARBON TIN SALT OF A CARBOXYLIC ACID, AND AS A LIGHT-STABILIZER THEREFOR A SALT OF MAGNESIUM HAVING A REFRACTIVE INDEX BETWEEN 1.50 AND 1.54 AND SELECTED FROM THE GROUP CONSISTING OF THE PHOSPHATES, CARBONATES AND SILICATES.
Claim 2
Dependent Claim
62 words
RESINOUS COMPOSITION COMPRISING A VINYL CHLORIDE RESIN HAVING A REFRACTIVE INDEX VALUE BETWEEN 1.51 AND 1.53 AND DISPERSED IN SAID RESIN AS A HEAT-STABILIZER THEREFOR A HYDROCARBON TIN SALT OF A CARBOXYLIC ACID, AND AS A LIGHT-STABILIZER THEREFOR A SALT OF MAGNESIUM HAVING A REFRACTIVE INDEX BETWEEN 1.50 AND 1.54 AND SELECTED FROM THE GROUP CONSISTING OF THE PHOSPHATES, CARBONATES AND SILICATES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |