IP Library Patent Application 09719655
Patent Application Utility PCT National Stage Small
App. No. 09/719,655 · Confirmation No. 3563

Fire escape mask

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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Code Description Pages PDF
2001-04-05 LET. Miscellaneous Incoming Letter 32 View
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Quick Facts
App. No.
09/719,655
Filed
2001-04-05
Granted
2001-10-30
Art Unit
3765
PTA
0 days