Patent US2196579A successfully refreshed from Google Patents.
US2196579A
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US
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Polymeric vinylidene chloride compositions
Assignee: Dow Chemical Co
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Filing: 1937-10-06
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Granted: 1940-04-09
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Expires: 1957-10-06
Abstract
No abstract record available.
Inventors
- 👤 Robert C Reinhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:18
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/48; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08
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) | 1943-04-09 | 1943-10-09 | 1944-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-09 | 1947-10-09 | 1948-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-09 | 1951-10-09 | 1952-04-09 | $7700.00 | Window Closed / Lapsed |