Patent US2886547A successfully refreshed from Google Patents.
US2886547A
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Solution of vinylidene chloride polymer in a pyrrolidone solvent
Assignee: Dow Chemical Co
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Filing: 1956-03-05
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Granted: 1959-05-12
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Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Durward A Baggett
- 👤 Holmes H Mcclure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:48
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/096; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A SOLUTION OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYVINYLIDENE CHLORIDE AND COPOLYMERS OF AT LEAST 85% VINYLIDENE CHLORIDE WITH UP TO 15 PERCENT OF A MONOETHYLENIC VINYL ESTER, AND A SOLVENT SELECTED FROM THE CLASS CONTAINING OF N-METHYL-2-PYRROLIDONE AND 1,5-DIMETHYL-2-PYRROLIDONE.
Claim 2
Dependent Claim
43 words
A SOLUTION OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYVINYLIDENE CHLORIDE AND COPOLYMERS OF AT LEAST 85% VINYLIDENE CHLORIDE WITH UP TO 15 PERCENT OF A MONOETHYLENIC VINYL ESTER, AND A SOLVENT SELECTED FROM THE CLASS CONTAINING OF N-METHYL-2-PYRROLIDONE AND 1,5-DIMETHYL-2-PYRROLIDONE.
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |