US3678151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biological staining method
Assignee: GUGOL CLINI TEX Inc
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Filing: 1969-07-25
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Granted: 1972-07-18
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Expires: 1989-07-25
Abstract
Abstract The invention relates to preparation of precise micro and other values of volumetric concentrations of chemicals, standards, reagents, pharmaceuticals and biologicals in solvents therefor and utilizes dry segments from an inert, integrally divisible and absorbent carrier uniformly impregnated with said substances, each of the segments carrying a computed quantity of the impregnation based on the proportionate size with respect to the carrier. One of the objects of the invention is in the preparation and utilization of segments as dry stain or dye strips for formation of liquid stains applicable to biological materials such as blood smears and bacteria for staining and microscopic examination purposes.
Inventors
- 👤 Andrew Horonick
- 👤 Andre V Munschy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:35
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/30; Y; Y10; Y10S; Y10S435/00; Y10S435/808
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
17 words
The method of claim 1, wherein the dye-stain in the first dry strip is a Wright''s Stain.
References Cited (Backward Citations)
DE135829C
Cited
GB831804A
Cited
US2992971A
Cited
US3053255A
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US3138533A
Cited
US3075527A
Cited
US3359072A
Cited
US3495926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |