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US3726767A Expired / Lapsed US ⏱️ 0.0 years remaining

Microbiological reaction chamber apparatus

Assignee: NUNC INCORPORATED A DE CORP
•
Filing: 1971-08-27
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Granted: 1973-04-10
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Expires: 1991-08-27
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Abstract

Abstract MICROBILOGICAL REACTION CHAMBER APPARATUS HAVING A BOTTOM WALL AND SIDEWALLS WHICH IS USEFUL, FOR EXAMPLE, TO PRODUCE A TISSUE CULTURE DIRECTLY ON A BASE, SUCH AS A MICROSCOPE SLIDE, FOR SUBSEQUENT EXAMINATION AND STORAGE COMPRISES IN COMBINATION A BASE MEMBER WHICH FORMS THE BOTTOM OF SAID CHAMBER AND A RECEPTACLE MEMBER REMOVABLY ATTACHED BY CLAMPING MEANS IN LIQUIDIMPERMEABLE CONTACT WITH SAID BASE MEMBER. ONE ASPECT OF THE INVENTION RESIDES IN THE NOVEL RECEPTACLE COMPONENT USEFUL IN THE FABRICATION OF THE OVERALL APPARATUS. IN ONE USE OF THIS APPARATUS, A LIQUID TISSUE CULTURE MEDIUM CAN BE PLACED IN THE RECEPTACLE CHAMBER IN CONTACT WITH THE BASE, AND THE MEDIUM IS INCUBATED TO ALLOW THE TISSUE CULTURE TO GROW AND TO ATTACH SUCH GROWTH TO THE BASE. THE LIQUID MEDIUM IS THEN REMOVED FROM THE CHAMBER, AND THE RECEPTACLE IS REMOVED FROM THE BASE. THE TISSUE CULTURE GROWTH ON THE BASE CAN THEN BE TREATED AS DESIRED AND MICROSCOPICALLY EXAMINED.

Inventors

  • 👤 F White

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:09
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5085; B01L3/50853; B01L2300/00; B01L2300/08; B01L2300/0809; B01L2300/0822; B01L2300/12; B01L2300/123

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) 1976-04-09 1976-10-09 1977-04-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-09 1980-10-09 1981-04-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-09 1984-10-09 1985-04-10 $7700.00 Window Closed / Lapsed

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