Patent US2818393A successfully refreshed from Google Patents.
US2818393A
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Method of preparing a catalyst
Assignee: MW Kellogg Co
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Filing: 1953-05-05
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Granted: 1957-12-31
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Expires: 1973-05-05
Abstract
No abstract record available.
Inventors
- 👤 Philip A Lefrancois
- 👤 William P Burton
- 👤 Earl W Riblett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:51
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A METHOD OF PREPARING A CATALYST WHICH COMPRISES COMBINING AN AMMINE COMPLEX OF A METAL SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND PALLADIUM, A MERCURY COMPOUND AS AN ACTIVATING AGENT, AND A CARRIER MATERIAL, AND TREATING THE RESULTANT MIXTURE TO DECOMPOSE THE AMMINE COMPLEX TO A METALLIC RESIDUE ON THE CARRIER MATERIAL.
Claim 2
Independent Claim
53 words
A METHOD OF PREPARING A CATALYST WHICH COMPRISES COMBINING AN AMMINE COMPLEX OF A METAL SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND PALLADIUM, A MERCURY COMPOUND AS AN ACTIVATING AGENT, AND A CARRIER MATERIAL, AND TREATING THE RESULTANT MIXTURE TO DECOMPOSE THE AMMINE COMPLEX TO A METALLIC RESIDUE ON THE CARRIER MATERIAL.
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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |