IP Library › Patent Application 09830330
Patent Application Utility PCT National Stage
App. No. 09/830,330 · Confirmation No. 6758

REEL SPRING FOR USE OF A MAGNETIC TAPE CASSETTE AND A MAGNETIC TAPE CASSETTE

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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2001-04-26 LET. Miscellaneous Incoming Letter 26 View
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Quick Facts
App. No.
09/830,330
Filed
2001-04-26
Granted
2002-10-29
Art Unit
3654
PTA
0 days