Patent US3843324A successfully refreshed from Google Patents.
US3843324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cell fractionation and apparatus therefor
Assignee: Research Corp
•
Filing: 1972-09-13
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Granted: 1974-10-22
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Expires: 1992-09-13
Abstract
Abstract 1. A DEVICE FOR SELECTIVELY SEPARATING CELLS HAVING PREDETERMINED IMMUNOREACTIVE FACTORS ATTACHED THERETO FROM A FLUID CONTAINING SAID CELLS COMPRISING: 8A) A FRAME, 8B) FIBERS UNDER TENSION ATTACHED TO SAID FRAME, 8C) AND HAVING CHEMICALLY BONDED TO SAID FIBERS LYPOPHILIZED MATERIAL CONTAINING IMMUNOREACTIVE GROUPS HAVING MOLECULAR COMPLEMENTARITY WITH SAID PREDETERMINED UMMINOREACTIVE FACTORS CAPABLE OF FORMING BONDS WITH SAID PREDETERMINED IMMUNOREACTIVE FACTORS ATTACHED TO SAID CELLS.
Inventors
- 👤 G Edelman
- 👤 J Wang
- 👤 C Millette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/543; G01N33/544
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A DEVICE FOR SELECTIVELY SEPARATING CELLS HAVING PREDETERMINED IMMUNOREACTIVE FACTORS ATTACHED THERETO FROM A FLUID CONTAINING SAID CELLS COMPRISING: 8A) A FRAME, 8B) FIBERS UNDER TENSION ATTACHED TO SAID FRAME, 8C) AND HAVING CHEMICALLY BONDED TO SAID FIBERS LYPOPHILIZED MATERIAL CONTAINING IMMUNOREACTIVE GROUPS HAVING MOLECULAR COMPLEMENTARITY WITH SAID PREDETERMINED UMMINOREACTIVE FACTORS CAPABLE OF FORMING BONDS WITH SAID PREDETERMINED IMMUNOREACTIVE FACTORS ATTACHED TO SAID CELLS.
Claim 2
Independent Claim
64 words
A DEVICE FOR SELECTIVELY SEPARATING CELLS HAVING PREDETERMINED IMMUNOREACTIVE FACTORS ATTACHED THERETO FROM A FLUID CONTAINING SAID CELLS COMPRISING: 8A) A FRAME, 8B) FIBERS UNDER TENSION ATTACHED TO SAID FRAME, 8C) AND HAVING CHEMICALLY BONDED TO SAID FIBERS LYPOPHILIZED MATERIAL CONTAINING IMMUNOREACTIVE GROUPS HAVING MOLECULAR COMPLEMENTARITY WITH SAID PREDETERMINED UMMINOREACTIVE FACTORS CAPABLE OF FORMING BONDS WITH SAID PREDETERMINED IMMUNOREACTIVE FACTORS ATTACHED TO SAID CELLS.
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |