US3217889A
Expired / Lapsed
US
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Assignee: Abbott Laboratories
•
Filing: 1962-12-27
•
Granted: 1965-11-16
•
Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 Robert H Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:23
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/3627
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
211 words
IN A FILTER: A PAIR OF LONGITUDINALLY EXTENDING BODY SECTIONS DISPOSED IN FACE-TO-FACE RELATIONSHIP WITH RESPECT TO EACH OTHER, EACH BODY SECTION HAVING A MARGINAL WEB, EACH BODY SECTION HAVING A PAIR OF INWARDLY FACING, LONGITUDINALLY EXTENDING CHANNEL PORTIONS PROVIDING COMMUNICATION WITH EACH OTHER AT THEIR LONGITUDINAL ENDS AND SPACED FROM EACH OTHER BY A GENERALLY CENTRAL LONGITUDINALLY EXTENDING RIB, SAID CHANNEL PORTIONS OF ONE BODY SECTION BEING IN GENERALLY TRANSVERSE ALIGNMENT WITH SAID CHANNEL PORTIONS IN THE OTHER BODY SECTION, AND TWO LONGITUDINALLY EXTENDING FACE-TO-FACE SHEET PORTIONS OF FILTER MATERIAL IN CLOSED RELATIONSHIP AT ONE END, SAID MARGINAL EDGES AND SAID MARGINAL WEBS BEING JOINED IN FLUID-TIGHT RELATIONSHIP, SAID RIBS AND A GENERALLY CENTRAL LOCALIZED LONGITUDINALLY EXTENDING PORTION OF EACH OF SAID SHEET PORTIONS BEING JOINED IN FLUID-TIGHT RELATIONSHIP, SAID SHEET PORTIONS BEING SPACED APART INWARDLY OF SAID MARGINAL EDGES ON EACH SIDE OF SAID LOCALIZED PORTIONS TO DEFINE A PAIR OF PREFILTRATE CHAMBERS, SAID SHEET PORTIONS BEING SPACED FROM THEIR ADJACENT CHANNEL PORTIONS TO DEFINE A PAIR OF FILTRATE CHAMBERS, INLET MEANS SEALINGLY EXTENDING THROUGH AT LEAST ONE OF SAID BODY SECTIONS AND BETWEEN SAID PAIR OF SHEET MEMBERS AND OUTLET MEANS SEALINGLY EXTENDING THROUGH AT LEAST ONE OF SAID BODY SECTIONS AND INTO ONE OF SAID FILTRATE CHAMBERS.
Claim 2
Dependent Claim
211 words
IN A FILTER: A PAIR OF LONGITUDINALLY EXTENDING BODY SECTIONS DISPOSED IN FACE-TO-FACE RELATIONSHIP WITH RESPECT TO EACH OTHER, EACH BODY SECTION HAVING A MARGINAL WEB, EACH BODY SECTION HAVING A PAIR OF INWARDLY FACING, LONGITUDINALLY EXTENDING CHANNEL PORTIONS PROVIDING COMMUNICATION WITH EACH OTHER AT THEIR LONGITUDINAL ENDS AND SPACED FROM EACH OTHER BY A GENERALLY CENTRAL LONGITUDINALLY EXTENDING RIB, SAID CHANNEL PORTIONS OF ONE BODY SECTION BEING IN GENERALLY TRANSVERSE ALIGNMENT WITH SAID CHANNEL PORTIONS IN THE OTHER BODY SECTION, AND TWO LONGITUDINALLY EXTENDING FACE-TO-FACE SHEET PORTIONS OF FILTER MATERIAL IN CLOSED RELATIONSHIP AT ONE END, SAID MARGINAL EDGES AND SAID MARGINAL WEBS BEING JOINED IN FLUID-TIGHT RELATIONSHIP, SAID RIBS AND A GENERALLY CENTRAL LOCALIZED LONGITUDINALLY EXTENDING PORTION OF EACH OF SAID SHEET PORTIONS BEING JOINED IN FLUID-TIGHT RELATIONSHIP, SAID SHEET PORTIONS BEING SPACED APART INWARDLY OF SAID MARGINAL EDGES ON EACH SIDE OF SAID LOCALIZED PORTIONS TO DEFINE A PAIR OF PREFILTRATE CHAMBERS, SAID SHEET PORTIONS BEING SPACED FROM THEIR ADJACENT CHANNEL PORTIONS TO DEFINE A PAIR OF FILTRATE CHAMBERS, INLET MEANS SEALINGLY EXTENDING THROUGH AT LEAST ONE OF SAID BODY SECTIONS AND BETWEEN SAID PAIR OF SHEET MEMBERS AND OUTLET MEANS SEALINGLY EXTENDING THROUGH AT LEAST ONE OF SAID BODY SECTIONS AND INTO ONE OF SAID FILTRATE CHAMBERS.
References Cited (Backward Citations)
US799417A
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US1351561A
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US1790036A
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US2341114A
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US2765923A
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US2704544A
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US2901112A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |