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App. No. 14/481,985 · Confirmation No. 4913

SYSTEM AND METHOD TO DETERMINE THE PRESENCE STATUS OF A REGISTERED USER ON A NETWORK

Applicant: Unify GmbH & Co. KG
Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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Quick Facts
App. No.
14/481,985
Filed
2014-09-10
Granted
2018-05-01
Pub. No.
US20150074557A1
Art Unit
2451
PTA
-4 days