Patent US2535998A successfully refreshed from Google Patents.
US2265283A
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Process of making polymerized vinyl alcohol articles
Assignee: CHEMISCHE FORSCHUNGS GmbH
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Filing: 1935-11-21
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Granted: 1941-12-09
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Expires: 1955-11-21
Abstract
No abstract record available.
Inventors
- 👤 Willy O Herrmann
- 👤 Hachnel Wolfram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:43
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/14; B; B29; B29C; B29C48/00; B29C48/022; B29C48/03; B29C48/04; B29C48/05; B29C48/06; B29C48/07; B29C48/08; B29C48/09; B29K; B29K2029/00; B29K2029/04; Y; Y10; Y10S; Y10S8/00; Y10S8/10
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) | 1944-12-08 | 1945-06-09 | 1945-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-08 | 1949-06-09 | 1949-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-08 | 1953-06-09 | 1953-12-09 | $7700.00 | Window Closed / Lapsed |