Patent US3609871A successfully refreshed from Google Patents.
US3609871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas purification and getter regeneration apparatus and method
Assignee: Individual
•
Filing: 1970-02-27
•
Granted: 1971-10-05
•
Expires: 1990-02-27
Abstract
Abstract REGENERATION OF A GAS PURIFER COMPRISING A BED CONTAINING AN OXYGEN CONTAMINATED GETTER AND A MOLECULAR SEIVE INCLUDES THE STEPS OF HEATING THE BED CONTAINING THE GETTER BY MEANS OTHER THAN THE PURGE GAS; FLOWING THROUGH THE BED A GASEOUS MIXTURE OF AN INERT GAS AND HYDROGEN CHARACTERIZED IN THAT HYDROGEN AND OXYGEN CONTAMINANT IN THE GETTER REACT TO PRODUCE WATER OR MOISTURE THAT IS PURGED; REMOVING RESIDUAL WATER FROM THE SIEVE BY SUBJECTING THE BED TO EVACUATION; AND SUPPLYING AN INERT FILL GAS TO THE BED FOR COOLING SAME.
Inventors
- 👤 John M Ellison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:44
CPC Classifications
C; C01; C01B; C01B23/00; C01B21/00; C01B21/04; C01B21/0405; C01B21/0494; C01B2210/00; C01B2210/0001; C01B2210/0009; C01B2210/0014; C01B2210/0023; C01B2210/0042; C01B2210/0043; C01B2210/0045
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |