Patent US2309370A successfully refreshed from Google Patents.
US2309370A
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US
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Heat treatment of vinylidene chloride polymers
Assignee: Dow Chemical Co
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Filing: 1940-12-12
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Granted: 1943-01-26
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Expires: 1960-12-12
Abstract
No abstract record available.
Inventors
- 👤 Jack L Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/08; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/08; Y; Y10; Y10S; Y10S264/00; Y10S264/73
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-01-25 | 1946-07-27 | 1947-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-01-25 | 1950-07-27 | 1951-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-01-25 | 1954-07-27 | 1955-01-26 | $7700.00 | Window Closed / Lapsed |