Patent EP0409293A2 successfully refreshed from Google Patents.
EP0409293A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Optical coupling gel for flow cytometry apparatuses and the like
Assignee: Becton Dickinson and Co
•
Filing: 1987-05-19
•
Granted: —
•
Expires: 2007-05-19
Abstract
Abstract A layer of gel at the interface of flow chamber and lens provides a refractive index matching medium to facilitate light transmission between the lens and the flow chamber. The gel has an index of refraction between 1.4 and 1.6 and may be composed, e.g., by particles of silicon dioxide dispersed in silicone oil.
Inventors
- 👤 Howard North, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 02:06
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/33; G01; G01N; G01N15/00; G01N15/10; G01N15/14; G01N15/1404; G02B1/00; G01N15/1409
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
22 words
An optical coupling gel having an index of refraction between 1.40 and 1.60 for wavelengths of light between 250 and 750 nm.
Claim 2
Dependent Claim
22 words
An optical coupling gel having an index of refraction between 1.40 and 1.60 for wavelengths of light between 250 and 750 nm.
Claim 3
Dependent Claim
17 words
The gel of Claim 1 which is formed from a silicone oil and particles of silicon dioxide.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.