US2918497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of phenoxyacetaldehyde
Assignee: Honeywell International Inc
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Filing: 1957-12-23
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Granted: 1959-12-22
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Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles R Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:37
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/20; C07C47/277; C07C45/00; C07C45/27; C07C45/32; C07C45/37; C07C45/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR THE PRODUCTION OF PHENOXYACETALDEHYDE WHICH COMPRISES PASSING A VAPOROUS MIXTURE OF PHENOXYETHANOL AND EXCESS MOLECULAR OXYGEN-CONTAINING GAS INTO CONTACT WITH A CATALYST COMPRISING SILVER METAL SUPPORTED ON A MATERIAL SELECTED FROMTHE GROUP CONSISTING OF ALUNDUM, ALUMINA, SILICON CARBIDE, CALY AND PUMICE, SAID CATALYST BEING MAINTAINED AT A TEMPERATURE OF ABOUT 225* TO 275*C., AND SEPARATELY RECOVERING THE PHENOXYACETALDEHYDE SO PRODUCED.
Claim 2
Dependent Claim
63 words
A PROCESS FOR THE PRODUCTION OF PHENOXYACETALDEHYDE WHICH COMPRISES PASSING A VAPOROUS MIXTURE OF PHENOXYETHANOL AND EXCESS MOLECULAR OXYGEN-CONTAINING GAS INTO CONTACT WITH A CATALYST COMPRISING SILVER METAL SUPPORTED ON A MATERIAL SELECTED FROMTHE GROUP CONSISTING OF ALUNDUM, ALUMINA, SILICON CARBIDE, CALY AND PUMICE, SAID CATALYST BEING MAINTAINED AT A TEMPERATURE OF ABOUT 225* TO 275*C., AND SEPARATELY RECOVERING THE PHENOXYACETALDEHYDE SO PRODUCED.
References Cited (Backward Citations)
US2307934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |