IP Library › Patent Application 09807423
Patent Application Utility PCT National Stage
App. No. 09/807,423 · Confirmation No. 6224

GAS-INSULATED SWITCHGEAR DEVICE

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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2001-05-22 LET. Miscellaneous Incoming Letter 37 View
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Quick Facts
App. No.
09/807,423
Filed
2001-05-22
Granted
2003-04-08
Art Unit
2832
PTA
0 days