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US2841610A
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US
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Esters of aryl-substituted cyclobutanedicarboxylic acids
Assignee: Olin Corp
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Filing: 1955-08-12
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Granted: 1958-07-01
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Expires: 1975-08-12
Abstract
No abstract record available.
Inventors
- 👤 William A Lott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:28
CPC Classifications
C; C07; C07C; C07C219/00; C07C219/02; C07C219/04; C07C219/12; C07C2601/00; C07C2601/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF FREE BASES OF THE GENERAL FORMULA
Claim 2
Dependent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF FREE BASES OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2313016A
Cited
US2456555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |