US2448703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of halo allyl esters of carboxylic acids
Assignee: Wingfoot Corp
•
Filing: 1941-05-16
•
Granted: 1948-09-07
•
Expires: 1961-05-16
Abstract
No abstract record available.
Inventors
- 👤 Albert M Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:53
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/20; C08F236/00; C08F236/02; C08F236/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2159008A
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US2221663A
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US2127660A
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US2160941A
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US2205390A
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US2213201A
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US2310731A
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US2282088A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |