Patent US3030186A successfully refreshed from Google Patents.
US3030186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of hydrogen peroxide
Assignee: FMC Corp
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Filing: 1958-05-16
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Granted: 1962-04-17
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Expires: 1978-05-16
Abstract
No abstract record available.
Inventors
- 👤 Donald F Kreuz
- 👤 Leonard R Darbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:28
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/01; C01B15/022; C01B15/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN THE PRODUCTION OF HYDROGEN PEROXIDE BY THE ALTERNATE REDUCTION AND OXIDATION OF AN ALKYLATED ANTHRAQUINONE AS THE WORKING MATERIAL CARRIED IN SOLUTION AND WHEREIN THE WORKING MATERIAL IS HYDROGENATED BY PASSAGE THROUGH A FIXED PARTICULATE CATALYST BED OF A NOBLE METAL CATALYST DEPOSITED AS A SURFACE COATING UPON AN INERT SOLID CARRIER, THAT IMPROVEMENT COMPRISING SUCH INERT CARRIER BEING WITHIN THE RANGE OF 4 MESH 60 MESH AND HAVING A SURFACE AREA OF LESS THAN FIVE SQUARE METERS PER GRAM AND A PORE VOLUME AS TO PORES OF LESS THAN 800* A. OF LESS THAN 0.03 CC. PER GRAM.
Claim 2
Dependent Claim
100 words
IN THE PRODUCTION OF HYDROGEN PEROXIDE BY THE ALTERNATE REDUCTION AND OXIDATION OF AN ALKYLATED ANTHRAQUINONE AS THE WORKING MATERIAL CARRIED IN SOLUTION AND WHEREIN THE WORKING MATERIAL IS HYDROGENATED BY PASSAGE THROUGH A FIXED PARTICULATE CATALYST BED OF A NOBLE METAL CATALYST DEPOSITED AS A SURFACE COATING UPON AN INERT SOLID CARRIER, THAT IMPROVEMENT COMPRISING SUCH INERT CARRIER BEING WITHIN THE RANGE OF 4 MESH 60 MESH AND HAVING A SURFACE AREA OF LESS THAN FIVE SQUARE METERS PER GRAM AND A PORE VOLUME AS TO PORES OF LESS THAN 800* A. OF LESS THAN 0.03 CC. PER GRAM.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |