Patent US3655838A successfully refreshed from Google Patents.
US3655838A
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US
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Method of pelletizing analytical or immunological reagents
Assignee: Organon NV
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Filing: 1969-03-20
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Granted: 1972-04-11
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Expires: 1989-03-20
Abstract
Abstract PELLETIZED ANALYTICAL AND IMMUNOLOGICAL REAGENTS ARE PREPARED IN A STABLE ACCURATE FORM CONTAINING PREDETERMINED AND PRETESTED MEASURED AMOUNTS OF SUBSTANCES CAPABLE OF PARTICIPATING IN ANALYTICAL AND IMMUNOLOGICAL REACTIONS, SUCH AS PREGANCY TESTS, BY FORMING THESE REAGENTS INTO FROZEN AND FREEZE-DRIED BEADS OR SPHERE; A SET OF THESE PELLETS COMPRISING AN ANTISERUM AND AN ANTIGEN IS PLACED IN A TEST VESSEL AN MOISTENED WITH THE LIQUID TO BE TESTED AND THEN ALLOWED TO STAND UNTIL AGGLUTINATION OR PRECIPITIN REACTION DOES OR DOES NOT OCCUR.
Inventors
- 👤 Richard Thompson Price
- 👤 Stuart Michael Bauer
- 👤 John Brownlee
- 👤 Bastiaan Cornelis Goverde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:42
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/74; G01N33/76; B; B01; B01J; B01J2/00; B01J2/02; B01J2/06; B01L; B01L3/00; B01L3/02; B01L3/0203; F; F25; F25C; F25C1/00; Y; Y10; Y10S; Y10S435/00; Y10S435/963; Y10S436/00; Y10S436/805; Y10S436/807; Y10S436/81; Y10S436/811; Y10S436/814; Y10S436/815; Y10S436/817; Y10S436/818; Y10S436/826
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |