US2494758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation of aldehydes with aromatics or thiophenes in the presence of glauconite
Assignee: ExxonMobil Oil Corp
•
Filing: 1946-04-26
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Granted: 1950-01-17
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Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Howard D Hartough
- 👤 John J Sardella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:53
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/025; C08G16/0275; B; B01; B01J; B01J21/00; B01J21/16; C08G10/00; C08G10/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A METHOD FOR PRODUCING SUB-RESINOUS AND RESINOUS MATERIALS WHICH COMPRISES REACTING AROMATIC HYDROCARBONS WITH FORMALDEHYDE IN THE ABSENCE OF A SUBSTANTIAL AMOUNT OF WATER, IN THE PRSENCE OF GLAUCONITE, AT TEMPERATURES OF ABOUT 150 TO ABOUT 500 DEGREES FAHRENHEIT AND AT AUTOGENOUS PRESSURES.
Claim 2
Independent Claim
43 words
A METHOD FOR PRODUCING SUB-RESINOUS AND RESINOUS MATERIALS WHICH COMPRISES REACTING AROMATIC HYDROCARBONS WITH FORMALDEHYDE IN THE ABSENCE OF A SUBSTANTIAL AMOUNT OF WATER, IN THE PRSENCE OF GLAUCONITE, AT TEMPERATURES OF ABOUT 150 TO ABOUT 500 DEGREES FAHRENHEIT AND AT AUTOGENOUS PRESSURES.
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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |