Patent US2615901A successfully refreshed from Google Patents.
US2615901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing ethylene oxide substantially free of acetaldehyde
Assignee: Jefferson Chemical Co Inc
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Filing: 1949-05-11
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Granted: 1952-10-28
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Expires: 1969-05-11
Abstract
No abstract record available.
Inventors
- 👤 Paul P Mcclellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:00
CPC Classifications
C; C07; C07D; C07D301/00; C07D301/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS OF PRODUCING ETHYLENE OXIDE SUBSTANTIALLY FREE OF ACETALDEHYDE FROM ETHYLENE OXIDE CONTAINING A SUBSTANTIAL PROPORTION OF ACETALDEHYDE, WHICH COMPRISES DISTILLING THE ETHYLENE OXIDE CONTAINING A SUBSTANTIAL PROPORTION OF ACETALDEHYDE, TAKING OFF A SIDE STREAM OF ETHYLENE OXIDE CONTAINING SUBSTANTIALLY ALL OF THE ACETALDEHYDE, TAKING OFF OVERHEAD SUBSTANTIALLY PURE ETHYLENE OXIDE, HYDRATING THE ETHYLENE OXIDE CONTAINING THE ACETALDEHYDE TO PRODUCE A DILUTE SOLUTION OF ETHYLENE GLYCOL AND RECOVERNG FROM
Claim 2
Dependent Claim
70 words
A PROCESS OF PRODUCING ETHYLENE OXIDE SUBSTANTIALLY FREE OF ACETALDEHYDE FROM ETHYLENE OXIDE CONTAINING A SUBSTANTIAL PROPORTION OF ACETALDEHYDE, WHICH COMPRISES DISTILLING THE ETHYLENE OXIDE CONTAINING A SUBSTANTIAL PROPORTION OF ACETALDEHYDE, TAKING OFF A SIDE STREAM OF ETHYLENE OXIDE CONTAINING SUBSTANTIALLY ALL OF THE ACETALDEHYDE, TAKING OFF OVERHEAD SUBSTANTIALLY PURE ETHYLENE OXIDE, HYDRATING THE ETHYLENE OXIDE CONTAINING THE ACETALDEHYDE TO PRODUCE A DILUTE SOLUTION OF ETHYLENE GLYCOL AND RECOVERNG FROM
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) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |