US3667896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Applying film of stain to tissue mounted on a moving slide
Assignee: Bayer Corp
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Filing: 1968-10-21
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Granted: 1972-06-06
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Expires: 1988-10-21
Abstract
Abstract APPARATUS AND THE METHOD OF OPERATION THEREOF IS DESCRIBED FOR CONVEYING OBJECTS, SUCH AS MICROSCOPE SLIDES, OVER A FLAT LIQUID APPLYING SURFACE AND INJECTING A TREATING LIQUID INTO THE SPACE BETWEEN THE OBJECT AND THE SURFACE.
Inventors
- 👤 James Benjamin Mccormick
- 👤 Leighton Clifford Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:04
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/34; G01; G01N; G01N1/00; G01N1/28; G01N1/30; G01N1/31; G01N1/312
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |