G04B 37/1493

By means of a feather spring

Official title: {by means of a feather spring (Barette á ressort)}

G04B37/1493 (By means of a feather spring) appears on 68 US grants and 69 published applications in this corpus.

Search patents in G04B
Granted patents
68
Published applications
69
Assignees
41
Inventors
114
Latest grant
5 May 2026

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G04B 37/1493: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197700
197800
197910
198000
198120
198210
198300
198400
198500
198610
198700
198810
198900
199000
199100
199200
199300
199410
199510
199610
199700
199800
199920
200010
200112
200220
200301
200400
200510
200601
200711
200800
200900
201000
201102
201212
201310
201403
201513
201623
201737
201838
2019910
202048
202182
202263
202334
202423
202545
202621

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.