Patent US2911385A successfully refreshed from Google Patents.
US2911385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl aromatic polymers stabilized with oximes
Assignee: Dow Chemical Co
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Filing: 1956-07-02
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Granted: 1959-11-03
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Expires: 1976-07-02
Abstract
No abstract record available.
Inventors
- 👤 Jr William K Schweitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/32; C08K5/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A COMPOSITION OF MATTER THE ESSENTIAL CONSTITUENTS OF WHICH ARE A POLYMERIZED MONOVINYL AROMATIC HYDROCARBON AND AS A STABLIZING AGENT FOR INHIBITING DISCOLORING OF THE POLYMER UPON EXPOSIRE TO LIGHT HEAT AND OUT-OFDOORS WEATHERING, FROM 0.5 TO 5 PERCENT BASED ON THE WEIGHT OF THE POLYMER OF AN OXIME HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
53 words
A COMPOSITION OF MATTER THE ESSENTIAL CONSTITUENTS OF WHICH ARE A POLYMERIZED MONOVINYL AROMATIC HYDROCARBON AND AS A STABLIZING AGENT FOR INHIBITING DISCOLORING OF THE POLYMER UPON EXPOSIRE TO LIGHT HEAT AND OUT-OFDOORS WEATHERING, FROM 0.5 TO 5 PERCENT BASED ON THE WEIGHT OF THE POLYMER OF AN OXIME HAVING THE GENERAL FORMULA:
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) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |