US2622071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esterification process
Assignee: General Mills Inc
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Filing: 1951-04-09
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Granted: 1952-12-16
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Expires: 1971-04-09
Abstract
No abstract record available.
Inventors
- 👤 Stuart A Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:57
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G8/32; C08G8/04; C08G8/08; C08G8/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
PROCESS OF ESTERIFYING A COMPOUND HAVING A PHEONLIC HYDROXYL GROUP WITH AN ORGANIC CARBOXYLIC ACID, WHICH COMPRISES HEATING A MIXTURE OF SAID COMPOUND AND SAID ACID TO AT LEAST 150* C. BUT BELOW THE DECOMPOSITION TEMPERATURE IN THE PRESENCE OF AN ESTER OF PHOSPHOROUS ACID. SAID ESTER BEING SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND AROMATIC ESTERS.
Claim 2
Dependent Claim
58 words
PROCESS OF ESTERIFYING A COMPOUND HAVING A PHEONLIC HYDROXYL GROUP WITH AN ORGANIC CARBOXYLIC ACID, WHICH COMPRISES HEATING A MIXTURE OF SAID COMPOUND AND SAID ACID TO AT LEAST 150* C. BUT BELOW THE DECOMPOSITION TEMPERATURE IN THE PRESENCE OF AN ESTER OF PHOSPHOROUS ACID. SAID ESTER BEING SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND AROMATIC ESTERS.
References Cited (Backward Citations)
US2351958A
Cited
GB588833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |