Patent US2363044A successfully refreshed from Google Patents.
US2363044A
Expired / Lapsed
US
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Esters of acrylic acids
Assignee: Wingfoot Corp
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Filing: 1940-06-07
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Granted: 1944-11-21
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Expires: 1960-06-07
Abstract
No abstract record available.
Inventors
- 👤 Albert M Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:44
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C07; C07C; C07C69/00; C07C69/52; C07C69/533; C07C69/54; C07C2601/00; C07C2601/12; C07C2601/16; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1811
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) | 1947-11-21 | 1948-05-22 | 1948-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-21 | 1952-05-22 | 1952-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-21 | 1956-05-22 | 1956-11-21 | $7700.00 | Window Closed / Lapsed |