Patent US2938883A successfully refreshed from Google Patents.
US2938883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chloroethylene polymers stabilized with monoacrylic esters of hydroxy phenones
Assignee: Dow Chemical Co
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Filing: 1956-11-19
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Granted: 1960-05-31
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Expires: 1976-11-19
Abstract
No abstract record available.
Inventors
- 👤 William J Raich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A LIGHT STABLE THERMOPLASTIC COMPOSITION COMPRISING CHLOROETHYLENE POLYMER AND FROM 1 TO 10 PERCENT OF THE WEIGHT OF SAID POLYMER OF AN ESTER HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
27 words
A LIGHT STABLE THERMOPLASTIC COMPOSITION COMPRISING CHLOROETHYLENE POLYMER AND FROM 1 TO 10 PERCENT OF THE WEIGHT OF SAID POLYMER OF AN ESTER HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2345006A
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US2264291A
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US2425523A
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US2423089A
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US2477293A
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US2579079A
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GB738954A
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US2818401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |