H04M 15/18

According to duration of the call , or the communication

Official title: according to duration of the call {, or the communication}

H04M15/18 (According to duration of the call , or the communication) appears on 26 US grants and 21 published applications in this corpus.

Search patents in H04M
Granted patents
26
Published applications
21
Assignees
30
Inventors
48
Latest grant
24 Sep 2024

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H04M 15/18: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197710
197800
197910
198000
198100
198200
198310
198410
198500
198600
198700
198800
198900
199000
199100
199200
199310
199400
199510
199600
199700
199810
199900
200000
200100
200201
200311
200411
200530
200600
200713
200823
200900
201000
201110
201201
201321
201413
201520
201602
201731
201800
201901
202000
202100
202201
202300
202411
202501

By publication year. Applications have been published since 2001.

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