Barium-free electrode materials for electric lamps and...

Details Barium-free electrode materials for electric lamps and... Barium-free electrode materials for electric lamps and...

2005-11-28

2009-12-15

Ton, Toan (Department: 2889)

Electric lamp and discharge devices

Discharge devices having an electrode of particular material

Reexamination Certificate

active

07633216

ABSTRACT:
A barium-free electron emissive material comprises a barium-free metal oxide composition and operable to emit electrons on excitation. A lamp including an envelope, an electrode including a barium-free electron emissive material and a discharge material, is also disclosed.

REFERENCES:
patent: 2855264 (1958-10-01), Delrieu
patent: 3519865 (1970-07-01), Weston
patent: 3748517 (1973-07-01), Haft
patent: 4132916 (1979-01-01), Hueschen et al.
patent: 4319158 (1982-03-01), Watanabe et al.
patent: 5138224 (1992-08-01), Goldburt et al.
patent: 5585694 (1996-12-01), Goldburt et al.
patent: 5817597 (1998-10-01), Carolan et al.
patent: 5854152 (1998-12-01), Kohli et al.
patent: 5864209 (1999-01-01), Clark
patent: 5883462 (1999-03-01), Ushifusa et al.
patent: 5962977 (1999-10-01), Matsumoto et al.
patent: 6172453 (2001-01-01), Hamada et al.
patent: 6680574 (2004-01-01), Gaertner et al.
patent: 6879091 (2005-04-01), Venugopal et al.
patent: 2002/0058737 (2002-05-01), Nishiwaki et al.
patent: 2004/0051436 (2004-03-01), Kawai
patent: 2005/0073261 (2005-04-01), Takeuchi et al.
patent: 2005/0116639 (2005-06-01), Son et al.
patent: 2005/0117192 (2005-06-01), Enomoto et al.
patent: 2007/0003743 (2007-01-01), Asano et al.
patent: 0159741 (1985-10-01), None
patent: 0466138 (1992-01-01), None
patent: 0489463 (1992-06-01), None
patent: 0584858 (1994-03-01), None
patent: 0643416 (1995-03-01), None
patent: 2051470 (1981-01-01), None
patent: WO2004/025687 (2004-03-01), None
patent: WO2005/015601 (2005-02-01), None
PCT International Search Report dated Apr. 29, 2008.

Affiliated with

Also associated with

Rating

Barium-free electrode materials for electric lamps and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Barium-free electrode materials for electric lamps and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Barium-free electrode materials for electric lamps and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4095874