US3306928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing dialkenyl esters of benzene polycarboxylic acids
Assignee: Champlain Cable Corp
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Filing: 1962-11-27
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Granted: 1967-02-28
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Expires: 1982-11-27
Abstract
No abstract record available.
Inventors
- 👤 John H Lux
- 👤 Ernest O Ohsol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:22
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/02; C07C67/10; C07C67/11
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
75 words
A PROCESS OF PREPARING A DIALKENYL ESTER OF A BENZENE POLYCARBOXYLIC ACID COMPRISING HEATING RECTANTS CONSISTING OF (1) AN ALKENYL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALLYL CHLORIDE, METHALLYL CHLORIDE AND CROTYL CHLORIDE WITH (2) A CARBOXY COMPOUND OF THE GROUP CONSISTING OF BENZENE POLYCARBOXYLIC ACIDS AND ANHYDRIDES OF SUCH ACIDS AND (3) WATER, THERE ALSO BEING ADDED AT THE START OF THE PROCESS A POLY LOWER ALKYL ESTER OF SAID BENZENE POLYCARBOXYLIC ACID.
Claim 2
Dependent Claim
75 words
A PROCESS OF PREPARING A DIALKENYL ESTER OF A BENZENE POLYCARBOXYLIC ACID COMPRISING HEATING RECTANTS CONSISTING OF (1) AN ALKENYL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALLYL CHLORIDE, METHALLYL CHLORIDE AND CROTYL CHLORIDE WITH (2) A CARBOXY COMPOUND OF THE GROUP CONSISTING OF BENZENE POLYCARBOXYLIC ACIDS AND ANHYDRIDES OF SUCH ACIDS AND (3) WATER, THERE ALSO BEING ADDED AT THE START OF THE PROCESS A POLY LOWER ALKYL ESTER OF SAID BENZENE POLYCARBOXYLIC ACID.
Claim 3
Dependent Claim
43 words
A PROCESS OF PREPARING A DIALKENYL ESTER OF A BENZENE POLYCARBOXYLIC ACID COMPRISING HEATING REACTANTS CONSISTING OF AN ALKENYL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALLYL CHLORIDE, METHALLYL CHLORIDE AND CROTYL CHLORIDE WITH A LOWER ALKYL ESTER OF A BENZENE POLYCARBOXYLIC ACID.
Claim 4
Dependent Claim
43 words
A PROCESS OF PREPARING A DIALKENYL ESTER OF A BENZENE POLYCARBOXYLIC ACID COMPRISING HEATING REACTANTS CONSISTING OF AN ALKENYL CHLORIDE SELECTED FROM THE GROUP CONSISTING OF ALLYL CHLORIDE, METHALLYL CHLORIDE AND CROTYL CHLORIDE WITH A LOWER ALKYL ESTER OF A BENZENE POLYCARBOXYLIC ACID.
References Cited (Backward Citations)
US3086985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |