Patent US2219463A successfully refreshed from Google Patents.
US2219463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized vinyl resins
Assignee: Carbide and Carbon Chemicals Corp
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Filing: 1936-12-31
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Granted: 1940-10-29
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Expires: 1956-12-31
Abstract
No abstract record available.
Inventors
- 👤 Yngve Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57
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) | 1943-10-29 | 1944-04-29 | 1944-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-29 | 1948-04-29 | 1948-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-29 | 1952-04-29 | 1952-10-29 | $7700.00 | Window Closed / Lapsed |