GB8421369D0 - Earphones - Google Patents

Earphones

Info

Publication number
GB8421369D0
GB8421369D0 GB848421369A GB8421369A GB8421369D0 GB 8421369 D0 GB8421369 D0 GB 8421369D0 GB 848421369 A GB848421369 A GB 848421369A GB 8421369 A GB8421369 A GB 8421369A GB 8421369 D0 GB8421369 D0 GB 8421369D0
Authority
GB
United Kingdom
Prior art keywords
earphones
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB848421369A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cockerham P A
Original Assignee
Cockerham P A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cockerham P A filed Critical Cockerham P A
Priority to GB848421369A priority Critical patent/GB8421369D0/en
Publication of GB8421369D0 publication Critical patent/GB8421369D0/en
Priority to AU46503/85A priority patent/AU572335B2/en
Priority to EP85305963A priority patent/EP0175494A1/en
Priority to GB08521094A priority patent/GB2163622B/en
Pending legal-status Critical Current

Links

GB848421369A 1984-08-22 1984-08-22 Earphones Pending GB8421369D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB848421369A GB8421369D0 (en) 1984-08-22 1984-08-22 Earphones
AU46503/85A AU572335B2 (en) 1984-08-22 1985-08-21 Earphone adaptor
EP85305963A EP0175494A1 (en) 1984-08-22 1985-08-22 Earphone adaptors
GB08521094A GB2163622B (en) 1984-08-22 1985-08-22 Earphone adaptors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848421369A GB8421369D0 (en) 1984-08-22 1984-08-22 Earphones

Publications (1)

Publication Number Publication Date
GB8421369D0 true GB8421369D0 (en) 1984-09-26

Family

ID=10565698

Family Applications (2)

Application Number Title Priority Date Filing Date
GB848421369A Pending GB8421369D0 (en) 1984-08-22 1984-08-22 Earphones
GB08521094A Expired GB2163622B (en) 1984-08-22 1985-08-22 Earphone adaptors

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB08521094A Expired GB2163622B (en) 1984-08-22 1985-08-22 Earphone adaptors

Country Status (3)

Country Link
EP (1) EP0175494A1 (en)
AU (1) AU572335B2 (en)
GB (2) GB8421369D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3235865B2 (en) * 1991-06-03 2001-12-04 パイオニア株式会社 Ear speakers
CN114845204A (en) * 2022-04-29 2022-08-02 中航华东光电（上海）有限公司 Earphone structure based on real-time sound cavity is adjusted audio frequency and is had its earphone

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB721258A (en) * 1951-12-03 1955-01-05 Standard Telephones Cables Ltd Improvements in or relating to telephone headsets and to adjustable earpads therefor
US3335720A (en) * 1965-06-02 1967-08-15 Leonard Peter Frieder Valve for sound attenuating device
GB1333012A (en) * 1971-01-12 1973-10-10 Gentex Corp Sound attenuating earcups
US3787899A (en) * 1972-07-11 1974-01-29 Imp Optical Co Ltd Ear muff assembly
US3810525A (en) * 1972-07-26 1974-05-14 R Crenna Acoustical earpiece for air-push sound systems
US4243851A (en) * 1979-07-16 1981-01-06 Forney Robert B Ear cushioning device for headphones

Also Published As

Publication number Publication date
GB2163622A (en) 1986-02-26
GB8521094D0 (en) 1985-09-25
EP0175494A1 (en) 1986-03-26
AU572335B2 (en) 1988-05-05
GB2163622B (en) 1988-05-11
AU4650385A (en) 1986-02-27

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