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US3246412A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for illumination of transparencies

Assignee: —
•
Filing: —
•
Granted: 1966-04-19
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Expires: 1983-04-19
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Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 05:41
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G02B27/024; G09; G09F; G09F13/00; G09F13/04; G09F13/20; G09F13/22

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 193 words
APPARATUS FOR ILLUMINATION OF TRANSPARENCIES COMPRISING: (A) ILLUMINATION MEANS COMPRISING A PLURALITY OF VERTICALLY SPACED LIGHT EMITTING DEVICES FOR PROVIDING A FIELD OF LIGHT IN THE AREA IN WHICH THE TRANSPARENCIES ARE TO BE VIEWED; (B) A MOVABLE MAGAZINE FOR THE TRANSPARENCIES ADJACENT AND VERTICALLY SPACED FROM THE ILLUMINATING MEANS; (C) REMOVABLE LIGHT DIFFUSING PLATES IN THE MAGAZINE; (D) A PLATE MOVER FOR REMOVING THE PLATES FROM THE MAGAZINE AND MOVING THEM VERTICALLY INTO VIEWING POSITION IN FRONT OF THE ILLUMINATING MEANS; (E) MEANS FOR SECURING TRANSPARENCIES ON THE SIDE OF EACH PLATE REMOTE FROM THE ILLUMINATING MEANS WITH THE PLATE IN VIEWING POSITION; (F) TRACK FOR THE MAGAZINE PROVIDING A MAGAZINE COURSE DISPOSED FOR TRAVEL OF THE MAGAZINE TO SELECTIVELY POSITION EACH INDIVIDUAL PLATE FOR ENGAGEMENT THEREOF BY THE MOVER TO PERMIT MOVING THE PLATE BY THE MOVER INTO VIEWING POSITION; (G) MEANS FOR MOVING THE MAGAZINE OVER SAID TRACK FOR SELECTIVE POSITIONING AS AFORESAID; AND (H) SWITCH MEANS FOR INACTIVATING LIGHT EMITTING DEVICES REMOTE FROM THE MAGAZINE WHILE LIGHT EMITTING DEVICES ADJACENT THE MAGAZINE ARE ENERGIZED, PRIOR TO MOVEMENT OF THE PLATE TO IN FRONT OF SAID REMOTE LIGHT EMITTING DEVICES.
Claim 2
Dependent Claim 193 words
APPARATUS FOR ILLUMINATION OF TRANSPARENCIES COMPRISING: (A) ILLUMINATION MEANS COMPRISING A PLURALITY OF VERTICALLY SPACED LIGHT EMITTING DEVICES FOR PROVIDING A FIELD OF LIGHT IN THE AREA IN WHICH THE TRANSPARENCIES ARE TO BE VIEWED; (B) A MOVABLE MAGAZINE FOR THE TRANSPARENCIES ADJACENT AND VERTICALLY SPACED FROM THE ILLUMINATING MEANS; (C) REMOVABLE LIGHT DIFFUSING PLATES IN THE MAGAZINE; (D) A PLATE MOVER FOR REMOVING THE PLATES FROM THE MAGAZINE AND MOVING THEM VERTICALLY INTO VIEWING POSITION IN FRONT OF THE ILLUMINATING MEANS; (E) MEANS FOR SECURING TRANSPARENCIES ON THE SIDE OF EACH PLATE REMOTE FROM THE ILLUMINATING MEANS WITH THE PLATE IN VIEWING POSITION; (F) TRACK FOR THE MAGAZINE PROVIDING A MAGAZINE COURSE DISPOSED FOR TRAVEL OF THE MAGAZINE TO SELECTIVELY POSITION EACH INDIVIDUAL PLATE FOR ENGAGEMENT THEREOF BY THE MOVER TO PERMIT MOVING THE PLATE BY THE MOVER INTO VIEWING POSITION; (G) MEANS FOR MOVING THE MAGAZINE OVER SAID TRACK FOR SELECTIVE POSITIONING AS AFORESAID; AND (H) SWITCH MEANS FOR INACTIVATING LIGHT EMITTING DEVICES REMOTE FROM THE MAGAZINE WHILE LIGHT EMITTING DEVICES ADJACENT THE MAGAZINE ARE ENERGIZED, PRIOR TO MOVEMENT OF THE PLATE TO IN FRONT OF SAID REMOTE LIGHT EMITTING DEVICES.

References Cited (Backward Citations)

US1989803A Cited
US2107738A Cited
US963336A Cited
US2530821A Cited
US2943410A Cited
US3055131A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-04-18 1969-10-18 1970-04-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-04-18 1973-10-18 1974-04-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-04-18 1977-10-18 1978-04-19 $7700.00 Window Closed / Lapsed

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