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US3712978A Expired / Lapsed US ⏱️ 0.0 years remaining

Portable soft-light assembly

Assignee: LOWEL-LIGHT MANUFACTURNG Inc
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Filing: 1970-09-30
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Granted: 1973-01-23
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Expires: 1990-09-30
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Abstract

Abstract A PORTABLE SOFT-LIGHT ASSEMBLY INCLUDES A COLLAPSIBLE FRAME WHICH HAS A LIGHT SOURCE HOUSING AS AN INTEGRAL PART THEREOF, AND A REMOVABLE REFLECTOR ENVELOPE WHICH IS MOUNTABLE ON THE FRAME. THE COLLAPSIBLE FRAME INCLUDES A PAIR OF FOLDABLE SUPPORTING MEMBERS HAVING A FOLDED POSITION AND AN UNFOLDED POSITION WHICH SUPPORTING MEMBERS PROVIDE A DESIRED SUPPORTING CONTOUR IN THE UNFOLDED POSITION. THE SUPPORTING MEMBERS ARE PIVOTALLY CONNECTED TO THE LIGHT SOURCE HOUSING IN SPACED APART RELATION. THE REFLECTOR ENVELOPE IS REMOVABLY MOUNTABLE ON THE SUPPORTING MEMBERS IN THE UNFOLDED POSITION THEREOF, AND SUBSTANTIALLY CONFORMS TO THE SUPPORTING CONTOUR WHEN SO MOUNTED. THE LIGHT SOURCE DIRECTS THE LIGHT TOWARD THE INTERIOR OF THE RELECTOR ENVELOPE WHICH DIFFUSES THE LIGHT. LIGHT PATTERN CONTROLLING MEANS, SUCH AS "BARNS DOORS" CAN BE REMOVABLY MOUNTED ON THE FRAME TO CONTROL THE PATTERN OF THE DIFFUSED LIGHT.

Inventors

  • 👤 R Lowell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 22:56
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/10; F21V7/18; G; G03; G03B; G03B15/00; G03B15/02; G03B15/06; F21W; F21W2131/00; F21W2131/40; F21W2131/406

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-23 1976-07-24 1977-01-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-23 1980-07-24 1981-01-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-23 1984-07-24 1985-01-23 $7700.00 Window Closed / Lapsed

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