US2830080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of peracetic acid
Assignee: Shawinigan Chemicals Ltd
•
Filing: 1956-04-30
•
Granted: 1958-04-08
•
Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Harold B Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:33
CPC Classifications
C; C07; C07C; C07C407/00; C07C407/003; C07C407/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR THE PREPARATION OF PERACETIC ACID COMPRISING OXIDIZING LIQUID ACETALDEHYDE WITH OXYGENCONTAINING GAS IN THE PRESENCE OF ONE HALIDE SALT CATALYST OF THE GROUP CONSISTING OF THE CHLORIDE AND BROMIDE SALTS OF COPPER, THE CHLORIDE AND BROMIDE SALTS OF COBALT, AND CUPRIC AMMONIUM CHLORIDE, TO FORM PERACETIC ACID.
Claim 2
Dependent Claim
50 words
A PROCESS FOR THE PREPARATION OF PERACETIC ACID COMPRISING OXIDIZING LIQUID ACETALDEHYDE WITH OXYGENCONTAINING GAS IN THE PRESENCE OF ONE HALIDE SALT CATALYST OF THE GROUP CONSISTING OF THE CHLORIDE AND BROMIDE SALTS OF COPPER, THE CHLORIDE AND BROMIDE SALTS OF COBALT, AND CUPRIC AMMONIUM CHLORIDE, TO FORM PERACETIC ACID.
References Cited (Backward Citations)
DE272738C
Cited
US1179421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |