GB8421369D0 - Earphones - Google Patents

Earphones

Info

Publication number: GB8421369D0
Authority: GB; United Kingdom
Prior art keywords: earphones
Prior art date: 1984-08-22
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.)

1984-08-22

Filing date

1984-08-22

Publication date

1984-09-26

1984-08-22 Application filed by Cockerham P A filed Critical Cockerham P A

1984-08-22 Priority to GB848421369A priority Critical patent/GB8421369D0/en

1984-09-26 Publication of GB8421369D0 publication Critical patent/GB8421369D0/en

1985-08-21 Priority to AU46503/85A priority patent/AU572335B2/en

1985-08-22 Priority to GB08521094A priority patent/GB2163622B/en

1985-08-22 Priority to EP85305963A priority patent/EP0175494A1/en

Status 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
GB08521094A GB2163622B (en)	1984-08-22	1985-08-22	Earphone adaptors
EP85305963A EP0175494A1 (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
CN114845204B (en) *	2022-04-29	2024-10-18	中航华东光电（上海）有限公司	Earphone structure based on real-time sound cavity adjusts audio frequency and have 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

1984
- 1984-08-22 GB GB848421369A patent/GB8421369D0/en active Pending
1985
- 1985-08-21 AU AU46503/85A patent/AU572335B2/en not_active Ceased
- 1985-08-22 GB GB08521094A patent/GB2163622B/en not_active Expired
- 1985-08-22 EP EP85305963A patent/EP0175494A1/en not_active Withdrawn

Also Published As

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

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