US4451570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Immunoglobulin-secreting human hybridomas from a cultured human lymphoblastoid cell line
Assignee: University of California
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Filing: 1981-03-26
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Granted: 1984-05-29
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Expires: 2001-03-26
Abstract
Abstract Novel human lymphoblastoid cells and hybridomas derived therefrom are provided. The cells are a HGPRT negative human B-cell line. The cells are readily fusible with lymphoid cells to produce hybridomas which secrete human monoclonal antibodies.
Inventors
- 👤 Ivor Royston
- 👤 Harold Handley
- 👤 J. Edwin Seegmiller
- 👤 Linda F. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:49
CPC Classifications
C; C12; C12N; C12N5/00; C12N5/10; C12N5/12; C12N5/16; C12N5/163; C07; C07K; C07K16/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/948
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
A HAT sensitive human lymphoblastoid B-cell line UC 729-6, ATCC-CRl 8061.
Claim 2
Dependent Claim
11 words
A HAT sensitive human lymphoblastoid B-cell line UC 729-6, ATCC-CRl 8061.
Claim 3
Dependent Claim
23 words
A hybridoma cell line derived from the fusion of lymphoblastoid B-cell line UC 729-6 ATCC CRL 8061 fused with a lymphoid cell line.
Claim 4
Dependent Claim
23 words
A hybridoma cell line derived from the fusion of lymphoblastoid B-cell line UC 729-6 ATCC CRL 8061 fused with a lymphoid cell line.
References Cited (Backward Citations)
US4172124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |