US2805920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for hydrolyzing aluminum alcoholates in limited quantituies of water
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1953-12-09
•
Granted: 1957-09-10
•
Expires: 1973-12-09
Abstract
No abstract record available.
Inventors
- 👤 Roger W Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:18
CPC Classifications
C; C04; C04B; C04B35/00; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; C01; C01F; C01F7/00; C01F7/02; C01F7/34; C01F7/36; C04B35/01; C04B35/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS OF PREPARING ALUMINA WHICH COMPRISES HYDROLYZING A SOLUTION OF AN ALUMINUM ALCOHOLATE OF AN ALCOHOL CONTAINING FROM 1 TO 10 CARBON ATOMS PER MOLECULE BY CONTACTING SAID SOLUTION WITH AT MOST ABOUT 110% OF THE STOICHIOMETRIC AMOUNT OF WATER NECESSARY TO CONVERT THE ALUMINUM ALCOHOLATE TO ALPHA ALUMINA MONOHYDRATE DISSOLVED IN AN ALIPHATIC ALCOHOL CONTAINING AT MOST SIX CARBON ATOMS PER MOLECULE THEREBY FORMING ALPHA ALUMINA MONOHYDRATE.
Claim 2
Dependent Claim
69 words
A PROCESS OF PREPARING ALUMINA WHICH COMPRISES HYDROLYZING A SOLUTION OF AN ALUMINUM ALCOHOLATE OF AN ALCOHOL CONTAINING FROM 1 TO 10 CARBON ATOMS PER MOLECULE BY CONTACTING SAID SOLUTION WITH AT MOST ABOUT 110% OF THE STOICHIOMETRIC AMOUNT OF WATER NECESSARY TO CONVERT THE ALUMINUM ALCOHOLATE TO ALPHA ALUMINA MONOHYDRATE DISSOLVED IN AN ALIPHATIC ALCOHOL CONTAINING AT MOST SIX CARBON ATOMS PER MOLECULE THEREBY FORMING ALPHA ALUMINA MONOHYDRATE.
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) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |