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US3075610A Expired / Lapsed US ⏱️ 0.0 years remaining

Convertible furniture article

Assignee: HELMUT LUBKE AND CO
•
Filing: 1960-02-23
•
Granted: 1963-01-29
•
Expires: 1980-02-23
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Abstract

No abstract record available.

Inventors

  • 👤 Lubke Helmut

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 07:54
CPC Classifications
A; A47; A47C; A47C12/00; A47C12/02; E; E06; E06C; E06C1/00; E06C1/005

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 207 words
A COMBINATION LADDER STOOL COMPRISING, A SUBSTANTIALLY FLAT BASE MEMBER HAVING A LONGITUDINALLY ELONGATED OPENING IN THE CENTER THEREOF, A PLURALITY OF LEGS CONNECTED TO SAID BASE MEMBER FOR SUPPORTING IT IN A NORMALLY HORIZONTAL POSITION, A COVER PIECE HINGEDLY CONNECTED TO ONE END OF SAID BASE MEMBER AND MOVABLE WITH RESPECT THERETO FROM A FIRST POSITION WHEREIN IT ENCLOSES SAID FRAME MEMBER TO A SECOND POSITION WHEREIN IT EXTENDS UPWARDLY FROM SAID FRAME MEMBER AT A RIGHT ANGLE, A FLAT PLATE MEMBER PIVOTALLY CONNECTED AT ONE END TO SAID COVER PIECE INTERMEDIATE ITS LENGTH, SAID PLATE MEMBER BEING ADAPTED TO LIE RECESSED WITHIN THE OPENING IN THE BASE MEMBER WHEN SAID COVER PIECE IS IN ITS FIRST POSITION, GUIDE MEANS CARRIED IN SAID BASE MEMBER ON OPPOSITE LONGITUDINAL SIDES OF THE OPENING THEREIN, A PAIR OF RODS PIVOTALLY CONNECTED AT ONE END TO THE FREE END OF SAID PLATE MEMBER AND SLIDABLY CONNECTED AT THE OTHER END TO SAID GUIDE MEANS AND BEING MOVABLE IN EACH OF TWO OPPOSITE DIRECTIONS THEREIN, THE SLIDABLY CONNECTED ENDS OF SAID RODS BEING ADAPTED TO MOVE IN SAID GUIDE MEANS IN A DIRECTION AWAY FROM THE HINGED CONNECTION OF SAID COVER PIECE WHEN IT IS MOVED TO ITS SECOND POSI-
Claim 2
Dependent Claim 207 words
A COMBINATION LADDER STOOL COMPRISING, A SUBSTANTIALLY FLAT BASE MEMBER HAVING A LONGITUDINALLY ELONGATED OPENING IN THE CENTER THEREOF, A PLURALITY OF LEGS CONNECTED TO SAID BASE MEMBER FOR SUPPORTING IT IN A NORMALLY HORIZONTAL POSITION, A COVER PIECE HINGEDLY CONNECTED TO ONE END OF SAID BASE MEMBER AND MOVABLE WITH RESPECT THERETO FROM A FIRST POSITION WHEREIN IT ENCLOSES SAID FRAME MEMBER TO A SECOND POSITION WHEREIN IT EXTENDS UPWARDLY FROM SAID FRAME MEMBER AT A RIGHT ANGLE, A FLAT PLATE MEMBER PIVOTALLY CONNECTED AT ONE END TO SAID COVER PIECE INTERMEDIATE ITS LENGTH, SAID PLATE MEMBER BEING ADAPTED TO LIE RECESSED WITHIN THE OPENING IN THE BASE MEMBER WHEN SAID COVER PIECE IS IN ITS FIRST POSITION, GUIDE MEANS CARRIED IN SAID BASE MEMBER ON OPPOSITE LONGITUDINAL SIDES OF THE OPENING THEREIN, A PAIR OF RODS PIVOTALLY CONNECTED AT ONE END TO THE FREE END OF SAID PLATE MEMBER AND SLIDABLY CONNECTED AT THE OTHER END TO SAID GUIDE MEANS AND BEING MOVABLE IN EACH OF TWO OPPOSITE DIRECTIONS THEREIN, THE SLIDABLY CONNECTED ENDS OF SAID RODS BEING ADAPTED TO MOVE IN SAID GUIDE MEANS IN A DIRECTION AWAY FROM THE HINGED CONNECTION OF SAID COVER PIECE WHEN IT IS MOVED TO ITS SECOND POSI-

References Cited (Backward Citations)

US357048A Cited
FR65947E Cited
US1479594A Cited
US1671013A Cited
US2438212A Cited
FR1067743A Cited
US2805703A Cited
US2918108A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-01-28 1966-07-30 1967-01-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-01-28 1970-07-30 1971-01-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-01-28 1974-07-30 1975-01-29 $7700.00 Window Closed / Lapsed

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