USD255684S - Response tracer amplifier unit having graphic amplifier response display for stereo sound systems and the like - Google Patents

Response tracer amplifier unit having graphic amplifier response display for stereo sound systems and the like Download PDF

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Publication number
USD255684S
USD255684S US05/889,122 US88912278F USD255684S US D255684 S USD255684 S US D255684S US 88912278 F US88912278 F US 88912278F US D255684 S USD255684 S US D255684S
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US
United States
Prior art keywords
response
amplifier
tracer
graphic
stereo sound
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.)
Expired - Lifetime
Application number
US05/889,122
Inventor
John F. Castagna
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.)
Plantronics Inc
Original Assignee
Sparkomatic Corp
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 Sparkomatic Corp filed Critical Sparkomatic Corp
Priority to US05/889,122 priority Critical patent/USD255684S/en
Application granted granted Critical
Publication of USD255684S publication Critical patent/USD255684S/en
Assigned to PHILADELPHIA NATIONAL BANK, THE, AS AGENT reassignment PHILADELPHIA NATIONAL BANK, THE, AS AGENT AMENDMENT TO AMEND THE ORIGINAL AGREEMENT DATED DECEMBER 31, 1983 (SEE RECORD FOR DETAILS) Assignors: SPARKOMATIC CORPORATION, SPARKOMATIC FOR EAST LIMITED
Assigned to PHILADELPHIA NATIONAL BANK, THE, AS AGENT reassignment PHILADELPHIA NATIONAL BANK, THE, AS AGENT AMENDMENT TO AMED THE ORIGINAL AGREEMENT DATED DECEMBER 23, 1988. (SEE RECORD FOR DETAILS.) Assignors: SPARKOMATIC CORPORATION, SPARKOMATIC FOR EAST LIMITED
Anticipated expiration legal-status Critical
Assigned to SPARKOMATIC CORPORATION reassignment SPARKOMATIC CORPORATION RELEASE Assignors: CORESTATES BANK, N.A.*
Assigned to BOT FINANCIAL CORPORATION reassignment BOT FINANCIAL CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SPARKOMATIC CORPORATION
Assigned to PNC BANK, NATIONAL ASSOCIATION reassignment PNC BANK, NATIONAL ASSOCIATION SECURITY AGREEMENT Assignors: BTM CAPITAL CORPORATION, F/K/A BOT FINANCIAL CORPORATION
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a front perspective view from above and to the right side of the response tracer amplifier unit having graphic amplifier response display for stereo sound systems and the like, showing my new design;
FIG. 2 is a front perspective view thereof, viewed from below and at the opposite side thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a side elevation view thereof viewed from the right side of FIG. 3, the opposite side elevation being a mirror image thereof; and
FIG. 5 is a bottom view thereof.

Claims (1)

  1. The ornamental design for a response tracer amplifier unit having graphic amplifier response display for stereo sound systems and the like, as shown and described.
US05/889,122 1978-03-21 1978-03-21 Response tracer amplifier unit having graphic amplifier response display for stereo sound systems and the like Expired - Lifetime USD255684S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/889,122 USD255684S (en) 1978-03-21 1978-03-21 Response tracer amplifier unit having graphic amplifier response display for stereo sound systems and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/889,122 USD255684S (en) 1978-03-21 1978-03-21 Response tracer amplifier unit having graphic amplifier response display for stereo sound systems and the like

Publications (1)

Publication Number Publication Date
USD255684S true USD255684S (en) 1980-07-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
US05/889,122 Expired - Lifetime USD255684S (en) 1978-03-21 1978-03-21 Response tracer amplifier unit having graphic amplifier response display for stereo sound systems and the like

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD484112S1 (en) 2002-05-02 2003-12-23 Ricardo Thomas Decorative sound spectrum display
USD564509S1 (en) * 2005-12-21 2008-03-18 Victor Company Of Japan, Limited Disc player with radio tuner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050044A (en) 1935-06-18 1936-08-04 D Onofrio Marcy Combination bed lamp and radio
US2781736A (en) 1955-06-07 1957-02-19 Bell & Howell Co Indicating means
US2855257A (en) 1953-12-28 1958-10-07 Eastern Ind Inc Casing assembly for portable radar apparatus
US4173941A (en) 1978-06-08 1979-11-13 Sparkomatic Corporation Response tracer audio equalizer amplifier unit having graphic response display

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050044A (en) 1935-06-18 1936-08-04 D Onofrio Marcy Combination bed lamp and radio
US2855257A (en) 1953-12-28 1958-10-07 Eastern Ind Inc Casing assembly for portable radar apparatus
US2781736A (en) 1955-06-07 1957-02-19 Bell & Howell Co Indicating means
US4173941A (en) 1978-06-08 1979-11-13 Sparkomatic Corporation Response tracer audio equalizer amplifier unit having graphic response display

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD484112S1 (en) 2002-05-02 2003-12-23 Ricardo Thomas Decorative sound spectrum display
USD564509S1 (en) * 2005-12-21 2008-03-18 Victor Company Of Japan, Limited Disc player with radio tuner

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