US4090846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indirect latex test for determination of fibrinogen degradation products
Assignee: IL Holding Spa
•
Filing: 1976-10-20
•
Granted: 1978-05-23
•
Expires: 1996-10-20
Abstract
Abstract Indirect test for the qualitative and quantitative determination of the presence of fibrinogen degradation products in human serum or urine utilizing the purified D and E fragments of fibrinogen chemically coupled to latex carrier particles as the reagent.
Inventors
- 👤 Francis Fremonte Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:52
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/86; G01N2333/00; G01N2333/435; G01N2333/745; G01N2333/75
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
60 words
A method for the determination of fibrinogen degradation products in a sample of human serum or urine which comprises mixing a sample of said serum or urine with antiserum to the D and E fragments of human fibrinogen; and adding a FDP-latex reagent containing the D and E fragmens of human fibrinogen chemically coupled to latex particles to said mixture.
Claim 2
Independent Claim
60 words
A method for the determination of fibrinogen degradation products in a sample of human serum or urine which comprises mixing a sample of said serum or urine with antiserum to the D and E fragments of human fibrinogen; and adding a FDP-latex reagent containing the D and E fragmens of human fibrinogen chemically coupled to latex particles to said mixture.
Claim 3
Dependent Claim
28 words
A method according to claim 1, which comprises applying said method serially to different dilutions of the sample and comparing with reference standards of known concentrations of FDP.
References Cited (Backward Citations)
US3912805A
Cited
US3915640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |