US3199680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialyzing apparatus
Assignee: Individual
•
Filing: 1961-01-17
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Granted: 1965-08-10
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Expires: 1981-01-17
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Schiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:00
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; B01F; B01F29/00; B01F29/30; B01F29/32; B01F29/321; B01D63/00; B01D63/06; B01D63/068; B01D63/16; B01D2315/00; B01D2315/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
APPARATUS FOR THE DIALYSIS OR SEPARATION OF LIQUID SOLUTIONS IN AN ELONGATED CLOSED MEMBERS COMPRISING, IN COMBINATION, A CHAMBER ADAPTED TO CONTAIN A LIQUID BUFFER, A PAIR OF SPACED ROTATATABLY DISCS DISPOSED IN SAID CHAMBER, MEANS ADAPTED TO COUPLE THE ENDS OF SAID ELONGATED CLOSED MEMBRANE BETWEEN SAID SPACED DISCS, SAID COUPLING MEANS INCLUDING A PAIR OF SWIVELS, ONE OF SAID SWIVEL BEING COUPLED TO ONE OF SAID ROTATABLE DISCS FOR COUPLING THERETO ONE END OF THE MEMBRANE AND THE OTHER OF SAID SWIVELS BEING COUPLED TO THE OTHER OF SAID ROTATABLE DISCS FOR COUPLING THERETO THE OTHER END OF SAID MEMBRANE, SAID SWIVELS BEING CIRCUMFERENTIALLY SPACED ON SAID DISCS INWARDLY FROM THE OUTER PERIPHERY THEREOF, AT LEAST ONE MEMBRANE BEING ADAPTED TO BE CONNECTED BETWEEN EACH OF SAID ONE OF SAID SWIVEL AND SAID OTHER OF SAID SWIVELS, SAID OTHER SWIVEL BEING DISPLACED FROM SAID ONE SWIVEL BY A DISC ANGLE OF AT LEAST 12*.
Claim 2
Dependent Claim
156 words
APPARATUS FOR THE DIALYSIS OR SEPARATION OF LIQUID SOLUTIONS IN AN ELONGATED CLOSED MEMBERS COMPRISING, IN COMBINATION, A CHAMBER ADAPTED TO CONTAIN A LIQUID BUFFER, A PAIR OF SPACED ROTATATABLY DISCS DISPOSED IN SAID CHAMBER, MEANS ADAPTED TO COUPLE THE ENDS OF SAID ELONGATED CLOSED MEMBRANE BETWEEN SAID SPACED DISCS, SAID COUPLING MEANS INCLUDING A PAIR OF SWIVELS, ONE OF SAID SWIVEL BEING COUPLED TO ONE OF SAID ROTATABLE DISCS FOR COUPLING THERETO ONE END OF THE MEMBRANE AND THE OTHER OF SAID SWIVELS BEING COUPLED TO THE OTHER OF SAID ROTATABLE DISCS FOR COUPLING THERETO THE OTHER END OF SAID MEMBRANE, SAID SWIVELS BEING CIRCUMFERENTIALLY SPACED ON SAID DISCS INWARDLY FROM THE OUTER PERIPHERY THEREOF, AT LEAST ONE MEMBRANE BEING ADAPTED TO BE CONNECTED BETWEEN EACH OF SAID ONE OF SAID SWIVEL AND SAID OTHER OF SAID SWIVELS, SAID OTHER SWIVEL BEING DISPLACED FROM SAID ONE SWIVEL BY A DISC ANGLE OF AT LEAST 12*.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |