US3796594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stain coated slides for differentially staining blood
Assignee: General Electric Co
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Filing: 1972-02-01
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Granted: 1974-03-12
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Expires: 1992-02-01
Abstract
Abstract SLIDES ARE PRESTAINED WITH A HOMOGENEOUS MIXTURE OF METHYLENE BLUE NN AND CRESYL VIOLET ACETATE IN A DRY TRANSPARENT FILM. A DROP OF BLOOD SMEARED ON THE SLIDE WITH A COVER GLASS SHOWS RETICULOXYTES, PLATLETS, AND WHITE BLOOD CELLS (NEUTROPHILIS, EOSINOPHILS, BASOPHILS, LYMPHOCYTES, MONOCYTES) SEPARATELY IDENTIFIABLE AFTER APPROXIMATELY FIVE MINUTES STAINING AT ROOM TEMPERATURE.
Inventors
- 👤 F Thomae
- 👤 J Geating
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:04
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/5005; G01N33/5094
Claims Analysis
Total Claims: 0
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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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |