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Current content: 157 117 910 patent documents

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139 301 new documents added

1 340 825 documents amended

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EP 0232517 B1 19900228 - PIPETTE

Title (en)

PIPETTE

Publication

EP 0232517 B1 19900228 (DE)

Application

EP 86117244 A 19861211

Priority

DE 3543950 A 19851212
DE 3614085 A 19860425

Abstract (en)

[origin: US4784834A] A pipette including an expansible chamber defined by an elastic bellows or a piston and a cylinder provided with a pressure equalizing vent.

IPC 1-7

B01L 3/02

IPC 8 full level

B01L 3/02 (2006.01)

CPC (source: EP US)

B01L 3/021 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL

DOCDB simple family (publication)

DE 3614085 A1 19870619; DE 3614085 C2 19890907; DE 3669118 D1 19900405; EP 0232517 A2 19870819; EP 0232517 A3 19880622; EP 0232517 B1 19900228; US 4784834 A 19881115

DOCDB simple family (application)

DE 3614085 A 19860425; DE 3669118 T 19861211; EP 86117244 A 19861211; US 94088386 A 19861212