US3564818A
Expired / Lapsed
US
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Process for removal of s02 from fluids
Assignee: JACK S LASKY
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Filing: 1968-12-11
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Granted: 1971-02-23
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Expires: 1988-12-11
Abstract
Abstract THE PRESENT INVENTION RELATES TO A PROCESS FOR REMOVING SO2 FROM A FLUID SUCH AS WATER, WASTE GASES, ETC., WHICH REMOVAL IS ACHIEVED BY PASSING SAID FLUID THROUGH A SHAPED ARTICLE FORMED FROM A POLYOLEFIN, POLYESTER OR NYLON IN ADMIXTURE WITH A NITROGEN-CONTAINING POLYMER.
Inventors
- 👤 Jack S Lasky
- 👤 Ronald W Fuest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:28
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/50; B01D53/508
Claims Analysis
Total Claims: 0
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |