US2921876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activation of aluminum
Assignee: Beazer East Inc
•
Filing: 1955-07-13
•
Granted: 1960-01-19
•
Expires: 1975-07-13
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Dobratz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:08
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS BY WHICH ALUMINUM THAT IS INACTIVE BECAUSE IT HAS NOT BEEN PROTECTED FROM OXIDATION IS ACTIVATED SO THAT IT CAN BE USED IN THE OXIDATION OF ORGANIC COMPOUNDS, WHICH PROCESS COMPRISES HEATING SAID INACTIVE ALUMINUM IN THE PRESENCE OF HYDROGEN AND A COMPOUND CONTAINING A HYDROCARBON RADICAL BONDED TO A METAL BY A CARBON-METAL BOND AT A TEMPERATURE OF AT LEAST ABOUT 150*C. AND BELOW THE ULTIMATE DECOMPOSITION TEMPERATURE OF SAID LAST-MENTIONED COMPOUND WHEREBY SAID INACTIVE ALUMINUM IS ACTIVATED.
Claim 2
Dependent Claim
81 words
A PROCESS BY WHICH ALUMINUM THAT IS INACTIVE BECAUSE IT HAS NOT BEEN PROTECTED FROM OXIDATION IS ACTIVATED SO THAT IT CAN BE USED IN THE OXIDATION OF ORGANIC COMPOUNDS, WHICH PROCESS COMPRISES HEATING SAID INACTIVE ALUMINUM IN THE PRESENCE OF HYDROGEN AND A COMPOUND CONTAINING A HYDROCARBON RADICAL BONDED TO A METAL BY A CARBON-METAL BOND AT A TEMPERATURE OF AT LEAST ABOUT 150*C. AND BELOW THE ULTIMATE DECOMPOSITION TEMPERATURE OF SAID LAST-MENTIONED COMPOUND WHEREBY SAID INACTIVE ALUMINUM IS ACTIVATED.
References Cited (Backward Citations)
US2271956A
Cited
US2404599A
Cited
US2388428A
Cited
US2691668A
Cited
BE535235A
Cited
US2787626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |