US2749231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bromophenyl cyanoacrylic acids and derivatives
Assignee: Ethyl Corp
•
Filing: 1952-05-06
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Granted: 1956-06-05
•
Expires: 1972-05-06
Abstract
No abstract record available.
Inventors
- 👤 Waldo B Ligett
- 👤 Calvin N Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:28
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A NEW COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF A-CYANO-B-BROMOPHENYL ACRYLIC ACID AND CARBOXYLIC DRIVATIVES THEREOF.
Claim 2
Dependent Claim
18 words
A NEW COMPOSITION OF MATTER SELECTED FROM THE GROUP CONSISTING OF A-CYANO-B-BROMOPHENYL ACRYLIC ACID AND CARBOXYLIC DRIVATIVES THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |