Patent US3851043A successfully refreshed from Google Patents.
US3851043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposing of exhaust gas from an ethylene oxide sterilizer
Assignee: American Sterilizer Co
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Filing: 1972-07-03
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Granted: 1974-11-26
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Expires: 1992-07-03
Abstract
Abstract 1. A METHOD OF DISPOSING OF GAS FROM AN ETHYLENE OXIDE STERILIZER COMPRISING REMOVING SAID GAS FROM THE STERILIZER WITHOUT EXPOSING THE SAME TO THE ATMOSPHERE, PASSING SAID GAS THROUGH A COLUMN CONTAINING AN ELONGATE BED OF STRONG ACID CATION-ACTIVE ION EXCHANGE RESIN IN THE HYDROCARBON FORM AND WATER COATING SAID RESIN TO FUNCTION AS A REACTION SOLVENT PHASE WHEREBY THE ETHYLENE OXIDE IN SAID GAS REACTS WITH THE RESIN AND IS BOUND THERETO AS HYDROXYETHYL GROUP, VENTING GAS WHICH IS FREE OF ETHYLENE OXIDE.
Inventors
- 👤 D Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:34
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/72; A; A61; A61L; A61L2/00; A61L2/16; A61L2/20; A61L2/206; B01J; B01J39/00; B01J39/04; B01J39/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A METHOD OF DISPOSING OF GAS FROM AN ETHYLENE OXIDE STERILIZER COMPRISING REMOVING SAID GAS FROM THE STERILIZER WITHOUT EXPOSING THE SAME TO THE ATMOSPHERE, PASSING SAID GAS THROUGH A COLUMN CONTAINING AN ELONGATE BED OF STRONG ACID CATION-ACTIVE ION EXCHANGE RESIN IN THE HYDROCARBON FORM AND WATER COATING SAID RESIN TO FUNCTION AS A REACTION SOLVENT PHASE WHEREBY THE ETHYLENE OXIDE IN SAID GAS REACTS WITH THE RESIN AND IS BOUND THERETO AS HYDROXYETHYL GROUP, VENTING GAS WHICH IS FREE OF ETHYLENE OXIDE.
Claim 2
Independent Claim
84 words
A METHOD OF DISPOSING OF GAS FROM AN ETHYLENE OXIDE STERILIZER COMPRISING REMOVING SAID GAS FROM THE STERILIZER WITHOUT EXPOSING THE SAME TO THE ATMOSPHERE, PASSING SAID GAS THROUGH A COLUMN CONTAINING AN ELONGATE BED OF STRONG ACID CATION-ACTIVE ION EXCHANGE RESIN IN THE HYDROCARBON FORM AND WATER COATING SAID RESIN TO FUNCTION AS A REACTION SOLVENT PHASE WHEREBY THE ETHYLENE OXIDE IN SAID GAS REACTS WITH THE RESIN AND IS BOUND THERETO AS HYDROXYETHYL GROUP, VENTING GAS WHICH IS FREE OF ETHYLENE OXIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |