US2484760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of vinylidene chloride copolymers
Assignee: Distillers Co Yeast Ltd
•
Filing: 1945-09-04
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Granted: 1949-10-11
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Expires: 1965-09-04
Abstract
No abstract record available.
Inventors
- 👤 Staudinger Hanns Peter
- 👤 Faulkner Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:09
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/08
Claims Analysis
Total Claims: 0
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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) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |