US2196803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of artificial masses from polyvinyl chloride
Assignee: IG Farbenindustrie AG
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Filing: 1937-11-06
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Granted: 1940-04-09
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Expires: 1957-11-06
Abstract
No abstract record available.
Inventors
- 👤 Wick Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:45
CPC Classifications
C; C08; C08J; C08J5/00; B; B29; B29C; B29C43/00; B29C43/003; B29K; B29K2027/00; B29K2027/06; B29K2105/00; B29K2105/25; B29K2105/251; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06
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 |