Patent US3067181A successfully refreshed from Google Patents.
US3067181A
Expired / Lapsed
US
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Polymerization process for vinyl cyanides
Assignee: Union Carbide Corp
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Filing: 1959-12-30
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Granted: 1962-12-04
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 Rudolph W Kluiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:51
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
THE POLYMERIZATION PROCESS WHICH COMPRISES CONTACTING A VINYL CYANIDE MONOMER HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
14 words
THE POLYMERIZATION PROCESS WHICH COMPRISES CONTACTING A VINYL CYANIDE MONOMER HAVING THE GENERAL FORMULA:
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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |