US2427513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of dispersing copolymer of vinyl chloride and vinyl acetate in a ketone and hydrocarbon dispersant
Assignee: Carbide and Carbon Chemicals Corp
•
Filing: 1944-03-03
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Granted: 1947-09-16
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Expires: 1964-03-03
Abstract
No abstract record available.
Inventors
- 👤 Clayton I Spessard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:43
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/11; C08J3/091; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1976433A
Cited
US2279771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-15 | 1951-03-17 | 1951-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-15 | 1955-03-17 | 1955-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-15 | 1959-03-17 | 1959-09-16 | $7700.00 | Window Closed / Lapsed |