DE69031760T2 - Thermion source and its manufacturing process - Google Patents

Thermion source and its manufacturing process

Info

Publication number
DE69031760T2
DE69031760T2 DE1990631760 DE69031760T DE69031760T2 DE 69031760 T2 DE69031760 T2 DE 69031760T2 DE 1990631760 DE1990631760 DE 1990631760 DE 69031760 T DE69031760 T DE 69031760T DE 69031760 T2 DE69031760 T2 DE 69031760T2
Authority
DE
Germany
Prior art keywords
manufacturing process
thermion
source
thermion source
manufacturing
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE1990631760
Other languages
German (de)
Other versions
DE69031760D1 (en
Inventor
Glenn Edward Spangler
John Paul Carrico
Donald Noble Campbell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ENVIRONMENTAL TECHNOLOGIES GROUP Inc BALTIMORE MD US
Environmental Technologies Group Inc
Original Assignee
ENVIRONMENTAL TECHNOLOGIES GROUP Inc BALTIMORE MD US
Environmental Technologies Group Inc
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
Application filed by ENVIRONMENTAL TECHNOLOGIES GROUP Inc BALTIMORE MD US, Environmental Technologies Group Inc filed Critical ENVIRONMENTAL TECHNOLOGIES GROUP Inc BALTIMORE MD US
Priority claimed from EP90870053A external-priority patent/EP0451432B1/en
Application granted granted Critical
Publication of DE69031760D1 publication Critical patent/DE69031760D1/en
Publication of DE69031760T2 publication Critical patent/DE69031760T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

DE1990631760 1990-04-11 1990-04-11 Thermion source and its manufacturing process Expired - Fee Related DE69031760T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90870053A EP0451432B1 (en) 1988-11-15 1990-04-11 Thermionic emitter and method of manufacture thereof

Publications (2)

Publication Number Publication Date
DE69031760D1 DE69031760D1 (en) 1998-01-08
DE69031760T2 true DE69031760T2 (en) 1998-04-09

Family

ID=8206067

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990631760 Expired - Fee Related DE69031760T2 (en) 1990-04-11 1990-04-11 Thermion source and its manufacturing process

Country Status (1)

Country Link
DE (1) DE69031760T2 (en)

Also Published As

Publication number Publication date
DE69031760D1 (en) 1998-01-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee