Patent US2421852A successfully refreshed from Google Patents.
US2421852A
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Thermosetting composition containing vinyl chloride-vinylidene chloride copolymer
Assignee: Wingfoot Corp
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Filing: 1943-06-11
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Granted: 1947-06-10
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Expires: 1963-06-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas H Rogers
- 👤 Robert D Vickers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2013941A
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US2148831A
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US2190776A
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US2117591A
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US2245742A
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US2270662A
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US2304637A
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US2336792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-09 | 1950-12-09 | 1951-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-09 | 1954-12-09 | 1955-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-09 | 1958-12-09 | 1959-06-10 | $7700.00 | Window Closed / Lapsed |