US2415796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chloroacrylophenones and polymers
Assignee: Wingfoot Corp
•
Filing: 1942-10-03
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Granted: 1947-02-11
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Expires: 1962-10-03
Abstract
No abstract record available.
Inventors
- 👤 Joy G Lichty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:25
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/45; C07C45/46; C07C49/00; C07C49/76; C07C49/80; C08; C08F; C08F16/00; C08F16/36; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2091373A
Cited
US1901354A
Cited
US2125393A
Cited
GB461080A
Cited
GB484599A
Cited
US2137664A
Cited
US2173066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-10 | 1950-08-12 | 1951-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-10 | 1954-08-12 | 1955-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-10 | 1958-08-12 | 1959-02-11 | $7700.00 | Window Closed / Lapsed |