Patent US3154682A successfully refreshed from Google Patents.
US3154682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of contaminants from gases
Assignee: MSA Safety Inc
•
Filing: 1960-07-21
•
Granted: 1964-10-27
•
Expires: 1980-07-21
Abstract
No abstract record available.
Inventors
- 👤 Nelson W Hartz
- 👤 John P Strange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:24
CPC Classifications
C; C01; C01B; C01B23/00; C01B23/0005; C01B3/00; C01B3/50; H; H01; H01J; H01J17/00; H01J17/02; H01J17/30; H01J17/32; H01T; H01T23/00; C01B2203/00; C01B2203/04; C01B2203/0465; C01B2203/047; C01B2203/0475; C01B2203/0485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE METHOD OF SEPARATING ELECTRONEGATIVE AND NONELECTRONEGATIVE CONSTITUENTS OF A GASEOUS MIXTURE THAT INCLUDES THE FOLLOWING STEPS; SUBJECTING THE MIXTURE TO A SOURCE OF IONIZATION, PASSING THE IONIZED MIXTURE THROUGH AN ELECTROSTATIC FIELD BETWEEN TWO OPPOSITELY CHARGED GAS PERMEABLE ELECTRODES, AND SEPARATELY WITHDRAWING ELECTRONEGATIVE CONSTITUENTS OF THE MIXTURE THROUGH ONE ELECTRODE AND NON-ELECRTRONEGATIVE CONSTITUENTS OF THE MIXTURE THROUGH THE OTHER ELECTRODE.
Claim 2
Independent Claim
61 words
THE METHOD OF SEPARATING ELECTRONEGATIVE AND NONELECTRONEGATIVE CONSTITUENTS OF A GASEOUS MIXTURE THAT INCLUDES THE FOLLOWING STEPS; SUBJECTING THE MIXTURE TO A SOURCE OF IONIZATION, PASSING THE IONIZED MIXTURE THROUGH AN ELECTROSTATIC FIELD BETWEEN TWO OPPOSITELY CHARGED GAS PERMEABLE ELECTRODES, AND SEPARATELY WITHDRAWING ELECTRONEGATIVE CONSTITUENTS OF THE MIXTURE THROUGH ONE ELECTRODE AND NON-ELECRTRONEGATIVE CONSTITUENTS OF THE MIXTURE THROUGH THE OTHER ELECTRODE.
References Cited (Backward Citations)
US1931436A
Cited
US2142129A
Cited
US2547874A
Cited
US2576616A
Cited
US2594777A
Cited
US2943196A
Cited
US2950387A
Cited
US3059110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |