Patent US3094494A successfully refreshed from Google Patents.
US3094494A
Expired / Lapsed
US
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Improved ion exchange cellular products
Assignee: Rohm and Haas Co
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Filing: 1959-01-26
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Granted: 1963-06-18
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Expires: 1979-01-26
Abstract
No abstract record available.
Inventors
- 👤 Robert P Hopkins
- 👤 William C Scudder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:13
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; B; B01; B01J; B01J47/00; B01J47/018; C08J2375/00; C08J2375/04; C08J2375/08; Y; Y10; Y10S; Y10S521/00; Y10S521/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AS AN ARTICLE OF MANUFACTURE, A MATRIX OF POLYMERIC MATERIAL CONTAINING INTERCOMMUNICATING CELLS DISTRIBUTED THROUGHOUT ITS MASS AND PARTICULATE ION EXCHANGE RESINS DISTRIBUTED IN THE WALLS BETWEEN SUCH CELLS, SAID POLYMERIC MATRIX BEING A FOAMED POLY(ETHER-URETHANE) WHICH IS THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE WITH A POLYETHER RESIN HAVING AN HYDROXYL FUNCTIONALITY IN THE RANGE OF 2.0 TO ABOUT 6.0, THE AMOUNT OF SUCH ION EXCHANGE RESIN BEING FROM 0.5 TO 160 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF FOAMED POLYMERIC MATERIAL OTHER THAN THE ION EXCHANGE RESIN FORMING THE MATRIX, SAID ARTICLE BEING FLEXIBLE, RESILIENT, AND HAVING A DENSITY OF NOT OVER 20 POUNDS PER CUBIC FOOT AND BEING PERMEABLE TO BOTH GASES AND LIQUIDS, WHEREBY THE ION EXCHANGE RESIN IS READILY AVAILABLE TO LIQUIDS INTRODUCED INTO THE MATRIX.
Claim 2
Dependent Claim
133 words
AS AN ARTICLE OF MANUFACTURE, A MATRIX OF POLYMERIC MATERIAL CONTAINING INTERCOMMUNICATING CELLS DISTRIBUTED THROUGHOUT ITS MASS AND PARTICULATE ION EXCHANGE RESINS DISTRIBUTED IN THE WALLS BETWEEN SUCH CELLS, SAID POLYMERIC MATRIX BEING A FOAMED POLY(ETHER-URETHANE) WHICH IS THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE WITH A POLYETHER RESIN HAVING AN HYDROXYL FUNCTIONALITY IN THE RANGE OF 2.0 TO ABOUT 6.0, THE AMOUNT OF SUCH ION EXCHANGE RESIN BEING FROM 0.5 TO 160 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF FOAMED POLYMERIC MATERIAL OTHER THAN THE ION EXCHANGE RESIN FORMING THE MATRIX, SAID ARTICLE BEING FLEXIBLE, RESILIENT, AND HAVING A DENSITY OF NOT OVER 20 POUNDS PER CUBIC FOOT AND BEING PERMEABLE TO BOTH GASES AND LIQUIDS, WHEREBY THE ION EXCHANGE RESIN IS READILY AVAILABLE TO LIQUIDS INTRODUCED INTO THE MATRIX.
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |