US2852464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for removing undesired solutes from liquids
Assignee: Individual
•
Filing: 1953-02-24
•
Granted: 1958-09-16
•
Expires: 1973-02-24
Abstract
No abstract record available.
Inventors
- 👤 Carl H Nordell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:06
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42; B; B01; B01J; B01J47/00; B01J47/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE METHOD OF LIFTING ZEOLITES WHICH CONSISTS OF CIRCULATING A CURRENT OF SPENT REGENERANT AND RINSE WATER IN A CLOSED CIRCUIT BETWEEN A HIGH POINT AND A LOW POINT, ENTRAINING SAID ZEOLITES IN SAID CURRENT AT SAID LOW POINT, SEPARATING SAID ZEOLITES FROM THE LIQUID AT SAID HIGH POINT, AND RETURNING THE CURRENT OF LIQUID IN A CLOSED CIRCUIT IN UNDIMINISHED VOLUME TO THE LOW POINT AGAIN IN CONTINUOUS CIRCULATION.
Claim 2
Independent Claim
70 words
THE METHOD OF LIFTING ZEOLITES WHICH CONSISTS OF CIRCULATING A CURRENT OF SPENT REGENERANT AND RINSE WATER IN A CLOSED CIRCUIT BETWEEN A HIGH POINT AND A LOW POINT, ENTRAINING SAID ZEOLITES IN SAID CURRENT AT SAID LOW POINT, SEPARATING SAID ZEOLITES FROM THE LIQUID AT SAID HIGH POINT, AND RETURNING THE CURRENT OF LIQUID IN A CLOSED CIRCUIT IN UNDIMINISHED VOLUME TO THE LOW POINT AGAIN IN CONTINUOUS CIRCULATION.
References Cited (Backward Citations)
US1961595A
Cited
US989942A
Cited
US1740199A
Cited
US1752339A
Cited
US1707302A
Cited
US1770580A
Cited
US1726082A
Cited
US2073388A
Cited
US2320147A
Cited
US2550955A
Cited
US2597693A
Cited
US2590148A
Cited
US2528099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |