US2745819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogen-containing resins stabilized with organo-tin compounds
Assignee: Carlisle Chemical Works Inc
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Filing: 1952-04-01
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Granted: 1956-05-15
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Expires: 1972-04-01
Abstract
No abstract record available.
Inventors
- 👤 Gerry P Mack
- 👤 Parker Emery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A HEAT AND LIGHT RESISTANT PLASTIC COMPOSITION INCLUDING AS A MAJOR CONSTITUENT A HALOGEN-CONTAINING RESIN AND AS A STABILIZER AN ORGANO-TIN COMPOUND WHEREIN A TETRAVALENT TIN ATOM IS LINKED WITH EACH OF ITS FOUR VALENCES TO A CARBON ATOM, AT LEAST TWO AND NOT MORE THAN THREE OF SAID CARBON ATOM BEING PART OF A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL, THE REST OF SAID CARBON ATOMS BEING EACH LINKED TO AT LEAST TWO NEGATIVE GROUPS, AT LEAST ONE OF WHICH CONTAINS A MEMBER SELECTED FROM THE GROUP CONSISTING OF CO, COO, CN, SO2, C:C, C$C, C:C, NO2, NO, AND CONJUGATED HYDROCARBON RINGS.
Claim 2
Dependent Claim
107 words
A HEAT AND LIGHT RESISTANT PLASTIC COMPOSITION INCLUDING AS A MAJOR CONSTITUENT A HALOGEN-CONTAINING RESIN AND AS A STABILIZER AN ORGANO-TIN COMPOUND WHEREIN A TETRAVALENT TIN ATOM IS LINKED WITH EACH OF ITS FOUR VALENCES TO A CARBON ATOM, AT LEAST TWO AND NOT MORE THAN THREE OF SAID CARBON ATOM BEING PART OF A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL, THE REST OF SAID CARBON ATOMS BEING EACH LINKED TO AT LEAST TWO NEGATIVE GROUPS, AT LEAST ONE OF WHICH CONTAINS A MEMBER SELECTED FROM THE GROUP CONSISTING OF CO, COO, CN, SO2, C:C, C$C, C:C, NO2, NO, AND CONJUGATED HYDROCARBON RINGS.
References Cited (Backward Citations)
US2604483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |