ATE94271T1 - CHIMNEY WITH MULTIPLE WALLS. - Google Patents

CHIMNEY WITH MULTIPLE WALLS.

Info

Publication number
ATE94271T1
ATE94271T1 AT90901295T AT90901295T ATE94271T1 AT E94271 T1 ATE94271 T1 AT E94271T1 AT 90901295 T AT90901295 T AT 90901295T AT 90901295 T AT90901295 T AT 90901295T AT E94271 T1 ATE94271 T1 AT E94271T1
Authority
AT
Austria
Prior art keywords
chimney
multiple walls
walls
Prior art date
Application number
AT90901295T
Other languages
German (de)
Inventor
James W Annestedt Sr
Original Assignee
American Metal Prod
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/279,379 external-priority patent/US4929000A/en
Application filed by American Metal Prod filed Critical American Metal Prod
Application granted granted Critical
Publication of ATE94271T1 publication Critical patent/ATE94271T1/en

Links

AT90901295T 1988-12-02 1989-11-29 CHIMNEY WITH MULTIPLE WALLS. ATE94271T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/279,379 US4929000A (en) 1988-12-02 1988-12-02 Multiple walled chimney
EP90901295A EP0399038B1 (en) 1988-12-02 1989-11-29 Multiple walled chimney
PCT/US1989/005404 WO1990006469A1 (en) 1988-12-02 1989-11-29 Multiple walled chimney

Publications (1)

Publication Number Publication Date
ATE94271T1 true ATE94271T1 (en) 1993-09-15

Family

ID=27233746

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90901295T ATE94271T1 (en) 1988-12-02 1989-11-29 CHIMNEY WITH MULTIPLE WALLS.

Country Status (1)

Country Link
AT (1) ATE94271T1 (en)

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee