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US3317231A Expired / Lapsed US ⏱️ 0.0 years remaining

Extension door handle

Assignee: Individual
•
Filing: 1964-10-30
•
Granted: 1967-05-02
•
Expires: 1984-10-30
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Abstract

No abstract record available.

Inventors

  • 👤 Morris W Lindquist
  • 👤 Pederson Clifford

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 17:16
CPC Classifications
E; E05; E05B; E05B53/00; Y; Y10; Y10T; Y10T292/00; Y10T292/57

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 337 words
IN A DOOR OF THE TYPE HAVING A LATCH ADJACENT THE FREE EDGE OF THE DOOR AT GENERALLY THE VERTICAL MID PORTION THEREOF, SAID LATCHING INCLUDING A MANUALLY DEPRESSIBLE RELEASE BUTTON, SAID BUTTON BEING DEPRESSIBLE INWARDLY PERPENDICULAR TO THE PLANE OF THE DOOR TO RELEASE THE LATCH, MEANS FOR ENABLING A SMALL CHILD TOOPERATE THE LATCH COMPRISING A ROD ON SAID DOOR EXTENDING VERTICALLY DOWNWARDLY TO ADJACENT THE LOWER PORTION OF THE DOOR, MEANS SUPPORTING SAID ROD ON SAID DOOR FOR ROTATION ABOUT THE VERTICAL AXIS OF THE ROD AND FOR PREVENTING THE ROD FROM SHIFTING UPWARDLY OR DOWNWARDLY, THE VERTICAL AXIS OF THE ROD BEING OFF-SET LATERALLY TOWARD THE HINGED EDGE OF THE DOOR FROM SAID BUTTON, SAID ROD HAVING AN ARM AT ITS UPPER END COMPRISING A HAND GRIP PORTION SPACED FROM THE PLANE OF THE DOOR AND EXTENDING HORIZONTALLY TOWARD THE HINGED EDGE OF THE DOOR, SAID HAND GRIP PORTION BEING ADAPTED TO BE ROTATED IN A DIRECTION AWAY FROM THE PLANE OF THE DOOR TO OPERATE THE LATCH, THE UPPER END OF THE ROD HAVING AN ARM EXTENDING OUTWARDLY FROM THE PLANE OF THE DOOR AND LATERALLY TOWARD SAID BUTTON, SAID UPPER ARM TERMINATING IN A FREE END WHICH IS ALIGNED HORIZONTALLY WITH THE BUTTON, SAID FREE END OF THE UPPER ARM BEING SPACED LATERALLY FROM THE BUTTON TOWARD THE HINGED EDGE OF THE DOOR SO AS TO NOT INTERFERE WITH NORMAL DEPRESSION OF THE BUTTON AND BEING SPACED OUTWARDLY FROM THE PLANE OF THE DOOR A DISTANCE GREATER THAN THE OUTER FREE END OF THE BUTTON, THE FREE END OF THE UPPER ARM BEING SPACED RADIALLY FROM THE AXIS OF ROTATION OF THE ROD APPROXIMATELY THE SAME DISTANCE AS THE OUTER FREE END OF THE BUTTON SUCH THAT WHEN THE HAND GRIP PORTION IS ROTATED IN A DIRECTION AWAY FROM THE PLANE OF THE DOOR THE UPPER ARM SWINGS IN A DIRECTION TOWARD THE PLANE OF THE DOOR AND THE FREE END THEREOF ENGAGES AND DEPRESSES THE BUTTON TO RELEASE THE LATCH.
Claim 2
Dependent Claim 337 words
IN A DOOR OF THE TYPE HAVING A LATCH ADJACENT THE FREE EDGE OF THE DOOR AT GENERALLY THE VERTICAL MID PORTION THEREOF, SAID LATCHING INCLUDING A MANUALLY DEPRESSIBLE RELEASE BUTTON, SAID BUTTON BEING DEPRESSIBLE INWARDLY PERPENDICULAR TO THE PLANE OF THE DOOR TO RELEASE THE LATCH, MEANS FOR ENABLING A SMALL CHILD TOOPERATE THE LATCH COMPRISING A ROD ON SAID DOOR EXTENDING VERTICALLY DOWNWARDLY TO ADJACENT THE LOWER PORTION OF THE DOOR, MEANS SUPPORTING SAID ROD ON SAID DOOR FOR ROTATION ABOUT THE VERTICAL AXIS OF THE ROD AND FOR PREVENTING THE ROD FROM SHIFTING UPWARDLY OR DOWNWARDLY, THE VERTICAL AXIS OF THE ROD BEING OFF-SET LATERALLY TOWARD THE HINGED EDGE OF THE DOOR FROM SAID BUTTON, SAID ROD HAVING AN ARM AT ITS UPPER END COMPRISING A HAND GRIP PORTION SPACED FROM THE PLANE OF THE DOOR AND EXTENDING HORIZONTALLY TOWARD THE HINGED EDGE OF THE DOOR, SAID HAND GRIP PORTION BEING ADAPTED TO BE ROTATED IN A DIRECTION AWAY FROM THE PLANE OF THE DOOR TO OPERATE THE LATCH, THE UPPER END OF THE ROD HAVING AN ARM EXTENDING OUTWARDLY FROM THE PLANE OF THE DOOR AND LATERALLY TOWARD SAID BUTTON, SAID UPPER ARM TERMINATING IN A FREE END WHICH IS ALIGNED HORIZONTALLY WITH THE BUTTON, SAID FREE END OF THE UPPER ARM BEING SPACED LATERALLY FROM THE BUTTON TOWARD THE HINGED EDGE OF THE DOOR SO AS TO NOT INTERFERE WITH NORMAL DEPRESSION OF THE BUTTON AND BEING SPACED OUTWARDLY FROM THE PLANE OF THE DOOR A DISTANCE GREATER THAN THE OUTER FREE END OF THE BUTTON, THE FREE END OF THE UPPER ARM BEING SPACED RADIALLY FROM THE AXIS OF ROTATION OF THE ROD APPROXIMATELY THE SAME DISTANCE AS THE OUTER FREE END OF THE BUTTON SUCH THAT WHEN THE HAND GRIP PORTION IS ROTATED IN A DIRECTION AWAY FROM THE PLANE OF THE DOOR THE UPPER ARM SWINGS IN A DIRECTION TOWARD THE PLANE OF THE DOOR AND THE FREE END THEREOF ENGAGES AND DEPRESSES THE BUTTON TO RELEASE THE LATCH.

References Cited (Backward Citations)

US813343A Cited
US1290145A Cited
US1552462A Cited
US1833254A Cited
US3144268A Cited
US3195393A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-05-01 1970-10-31 1971-05-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-05-01 1974-10-31 1975-05-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-05-01 1978-10-31 1979-05-02 $7700.00 Window Closed / Lapsed

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