US3197419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed antimony oxide-iron oxide oxidation catalyst
Assignee: Standard Oil Co
•
Filing: 1963-01-08
•
Granted: 1965-07-27
•
Expires: 1983-01-08
Abstract
No abstract record available.
Inventors
- 👤 James L Callahan
- 👤 Gertisser Berthold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:29
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/843; B01J23/8435; C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; C07C51/00; C07C51/16; C07C51/21; C07C51/25; C07C51/252; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A CATALYST COMPOSITION CONSISTING ESSENTIALLY OF AN ACTIVE CATALYTIC OIDE COMPLEX OF ANTIMONY AND IRON AS AN ESSENTIAL CATALYSTIC INGREDIENT, THE SB:FE ATOMIC RATIO BEING WITHIN THE RANGE FROM ABOUT 1:50 TO ABOUT 99:1; SAID COMPLEX BEING FORMED BY HEATING THE MIXED OXIDES OF ANTIMONY AND IRON IN THE PRESENCE OF OXYGEN AT AN ELEVATED TEMPERATURE ABOVE 500*F. BUT BELOW THEIR MELTING POINT FOR A TIME SUFFICIENT TO FORM SAID ACTIVE CATALYTIC OXIDE COMPLEX OF ANTIMONY AND IRON.
Claim 2
Dependent Claim
78 words
A CATALYST COMPOSITION CONSISTING ESSENTIALLY OF AN ACTIVE CATALYTIC OIDE COMPLEX OF ANTIMONY AND IRON AS AN ESSENTIAL CATALYSTIC INGREDIENT, THE SB:FE ATOMIC RATIO BEING WITHIN THE RANGE FROM ABOUT 1:50 TO ABOUT 99:1; SAID COMPLEX BEING FORMED BY HEATING THE MIXED OXIDES OF ANTIMONY AND IRON IN THE PRESENCE OF OXYGEN AT AN ELEVATED TEMPERATURE ABOVE 500*F. BUT BELOW THEIR MELTING POINT FOR A TIME SUFFICIENT TO FORM SAID ACTIVE CATALYTIC OXIDE COMPLEX OF ANTIMONY AND IRON.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |