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Patent US2898323A successfully refreshed from Google Patents.
US2898323A
Expired / Lapsed
US
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Chloroethylene polymers and salicyloxy hydroxy-benzophenones
Assignee: Dow Chemical Co
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Filing: 1956-04-23
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Granted: 1959-08-04
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Expires: 1976-04-23
Abstract
No abstract record available.
Inventors
- 👤 Gerald A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:38
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/134; C08K5/1345; C08K5/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A THERMOPLASTIC COMPOSITION COMPRISING A CHLOROETHYLENE POLYMER AND FROM 1 TO 4 PERCENT OF A COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
20 words
A THERMOPLASTIC COMPOSITION COMPRISING A CHLOROETHYLENE POLYMER AND FROM 1 TO 4 PERCENT OF A COMPOUND 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) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |