Patent US2628191A successfully refreshed from Google Patents.
US2628191A
Expired / Lapsed
US
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Regeneration of ion exchangers
Assignee: Permutit Co
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Filing: 1948-02-18
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Granted: 1953-02-10
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Expires: 1968-02-18
Abstract
No abstract record available.
Inventors
- 👤 Sard Bernard Abel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:11
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/80; B01J49/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A PROCEES OF DETERMINING WHEN TO REGENERATE A HYDROGEN ION EXCHANGER WHICH COMPRISES BYPASSING A PORTION OF THE EFFLUENT FROM THE EXCHANGER THROUGH A SMALL AUXILIARY HYDROEEN ION EXCHANGER, MEASURING THE CONDUCTIVITIES OF THE EFFLUENTS FROM SAID EXCHANGERS, AND REGENERATING SAID FIRST EXCHANGER WHEN SAID CONDUCTIVITIES BECOME SUBSTANTIALLY DIFFERENT FROM EACH OTHER.
Claim 2
Dependent Claim
52 words
A PROCEES OF DETERMINING WHEN TO REGENERATE A HYDROGEN ION EXCHANGER WHICH COMPRISES BYPASSING A PORTION OF THE EFFLUENT FROM THE EXCHANGER THROUGH A SMALL AUXILIARY HYDROEEN ION EXCHANGER, MEASURING THE CONDUCTIVITIES OF THE EFFLUENTS FROM SAID EXCHANGERS, AND REGENERATING SAID FIRST EXCHANGER WHEN SAID CONDUCTIVITIES BECOME SUBSTANTIALLY DIFFERENT FROM EACH OTHER.
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) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |