US3278562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation process using peracetic acid
Assignee: Celanese Corp
•
Filing: 1962-08-30
•
Granted: 1966-10-11
•
Expires: 1982-08-30
Abstract
No abstract record available.
Inventors
- 👤 Hubert H Thigpen
- 👤 Wallace E Taylor
- 👤 Arthur W Schnizer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:05
CPC Classifications
C; C07; C07D; C07D301/00; C07D301/02; C07D301/03; C07D301/14; B; B60; B60D; B60D1/00; B60D1/24; B60D1/42; B60D1/46; B62; B62D; B62D49/00; B62D49/06; B62D49/065; C07B; C07B35/00; C07B35/04; C07D313/00; C07D313/02; C07D313/04; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/947
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN AN OXYGEN ADDITION PROCESS WHEREIN PERACETIC ACID PROVIDED BY THE VAPOR PHASE OXIDATION OF ACETALDEHYDE IS THE OXIDIZING AGENT, THE IMPROVEMENT WHEREIN PERACETIC ACID IN ADMIXTURE WITH ACETALDEHYDE, IN VAPOR PHASE, IN BROUGHT TOGETHER IN A REACTOR AND IS CONTACTED IN THE VAPOR PHASE WITH A LIQUID TO BE OXIDIZED BY OXYGEN ADDITION.
Claim 2
Dependent Claim
54 words
IN AN OXYGEN ADDITION PROCESS WHEREIN PERACETIC ACID PROVIDED BY THE VAPOR PHASE OXIDATION OF ACETALDEHYDE IS THE OXIDIZING AGENT, THE IMPROVEMENT WHEREIN PERACETIC ACID IN ADMIXTURE WITH ACETALDEHYDE, IN VAPOR PHASE, IN BROUGHT TOGETHER IN A REACTOR AND IS CONTACTED IN THE VAPOR PHASE WITH A LIQUID TO BE OXIDIZED BY OXYGEN ADDITION.
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |