US3013023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of 5-nitrofuryl acrylic acid
Assignee: Individual
•
Filing: 1959-12-30
•
Granted: 1961-12-12
•
Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 Ueno Ryuzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:09
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/70; C07D307/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PROCESS FOR THE PRODUCTION OF 5-NITROFURYL ACRYLIC ACID BY NITRATION OF FURYL ACRYLIC ACID IN ACETIC ANHYDRIDE WITH NITRATING AGENT SELECTED FROM THE GROUP CONSISTING OF CONCENTRATED NITRIC ACID AND FUMING NITRIC ACID IN WHICH SAID NITRATION IS CARRIED OUT IN THE PRESENCE OF AN ADDITIONAL SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF CARBON TETRACHLORIDE, CHLOROFORM, ETHANE TETRACHLORIDE, ETHANE TETRABROMIDE, TRICHLOROBENZENE, DIPHENYLETHER, DICHLORODIPHENYLETHER, ETHANE DICHLORIDE, ETHYLENETRICHLORIDE, PROPANTRICHLORIDE AND BUTYL CHLORIDE, THE ADDITIONAL SUBSTANCE BEING INERT, INCOMBUSTIBLE, VOLATILE, SOLUBLE IN ACETIC ANHYDRIDE AND MAKING FURYL ACRYLIC ACID AND 5NITRO-FURYLACRYLIC ACID INSOLUBLE.
Claim 2
Dependent Claim
91 words
A PROCESS FOR THE PRODUCTION OF 5-NITROFURYL ACRYLIC ACID BY NITRATION OF FURYL ACRYLIC ACID IN ACETIC ANHYDRIDE WITH NITRATING AGENT SELECTED FROM THE GROUP CONSISTING OF CONCENTRATED NITRIC ACID AND FUMING NITRIC ACID IN WHICH SAID NITRATION IS CARRIED OUT IN THE PRESENCE OF AN ADDITIONAL SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF CARBON TETRACHLORIDE, CHLOROFORM, ETHANE TETRACHLORIDE, ETHANE TETRABROMIDE, TRICHLOROBENZENE, DIPHENYLETHER, DICHLORODIPHENYLETHER, ETHANE DICHLORIDE, ETHYLENETRICHLORIDE, PROPANTRICHLORIDE AND BUTYL CHLORIDE, THE ADDITIONAL SUBSTANCE BEING INERT, INCOMBUSTIBLE, VOLATILE, SOLUBLE IN ACETIC ANHYDRIDE AND MAKING FURYL ACRYLIC ACID AND 5NITRO-FURYLACRYLIC ACID INSOLUBLE.
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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |