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US3221837A Expired / Lapsed US ⏱️ 0.0 years remaining

Scaffold with folding stairway

Assignee: Up Right Inc
•
Filing: 1963-10-07
•
Granted: 1965-12-07
•
Expires: 1983-10-07
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Abstract

No abstract record available.

Inventors

  • 👤 Robert E Fisher

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 11:38
CPC Classifications
E; E04; E04G; E04G5/00; E04G5/10; E04G1/00; E04G1/34

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 203 words
A FOLDING SCAFFOLD COMPRISING: FIRST AND SECOND GENERALLY RECTANGULAR END SECTIONS; A PLATFORM PIVOTALLY CONNECTED AT ONE END THEREOF TO ONE END OF SAID FIRST END SECTION AND PIVOTALLY CONNECTED AT ITS OTHER END TO ONE END OF SAID SECOND END SECTION FOR ENABLING SAID SCAFFOLD TO BE FOLDED INTO A PACKAGE WITH THE PLATFORM AND END SECTIONS PARALLEL TO ONE ANOTHER AND TO BE ERECTED WITH THE END SECTIONS BEING VERTICAL AND THE PLATFORM BEING HORIZONTAL; A STAIRWAY COMPRISING FIRST AND SECOND MEMBERS, THE FIRST MEMBER BEING LONGER THAN SAID SECOND MEMBER; HINGE MEANS CONNECTING SAID FIRST AND SECOND STAIRWAY MEMBERS FOR ENABLING SAID MEMBERS TO BE FOLDED FLAT AGAINST EACH OTHER AND TO BE UNFOLDED INTO LINEAR RELATION; MEANS PIVOTALLY CONNECTING THE END OF SAID FIRST STAIRWAY MEMBER OPPOSITE SAID HINGE MEANS TO AN END OF SAID FIRST END SECTION; MEANS ON THE END OF SAID SECOND STAIRWAY MEMBER OPPOSITE SAID HINGE FOR DETACHABLY CONNECTING SAID SECOND STAIRWAY MEMBER TO A DIAGONALLY OPPOSITE END OF SAID SECOND END SECTION WHEN SAID END SECTIONS ARE ERECTED AND SAID STAIRWAY MEMBERS ARE UNFOLDED; MEANS FOR SECURING SAID STAIRWAY MEMBERS WHEN FOLDED WITHIN SAID PACKAGE FORMED BY SAID PLATFORM AND END SECTIONS WHEN FOLDED.
Claim 2
Dependent Claim 203 words
A FOLDING SCAFFOLD COMPRISING: FIRST AND SECOND GENERALLY RECTANGULAR END SECTIONS; A PLATFORM PIVOTALLY CONNECTED AT ONE END THEREOF TO ONE END OF SAID FIRST END SECTION AND PIVOTALLY CONNECTED AT ITS OTHER END TO ONE END OF SAID SECOND END SECTION FOR ENABLING SAID SCAFFOLD TO BE FOLDED INTO A PACKAGE WITH THE PLATFORM AND END SECTIONS PARALLEL TO ONE ANOTHER AND TO BE ERECTED WITH THE END SECTIONS BEING VERTICAL AND THE PLATFORM BEING HORIZONTAL; A STAIRWAY COMPRISING FIRST AND SECOND MEMBERS, THE FIRST MEMBER BEING LONGER THAN SAID SECOND MEMBER; HINGE MEANS CONNECTING SAID FIRST AND SECOND STAIRWAY MEMBERS FOR ENABLING SAID MEMBERS TO BE FOLDED FLAT AGAINST EACH OTHER AND TO BE UNFOLDED INTO LINEAR RELATION; MEANS PIVOTALLY CONNECTING THE END OF SAID FIRST STAIRWAY MEMBER OPPOSITE SAID HINGE MEANS TO AN END OF SAID FIRST END SECTION; MEANS ON THE END OF SAID SECOND STAIRWAY MEMBER OPPOSITE SAID HINGE FOR DETACHABLY CONNECTING SAID SECOND STAIRWAY MEMBER TO A DIAGONALLY OPPOSITE END OF SAID SECOND END SECTION WHEN SAID END SECTIONS ARE ERECTED AND SAID STAIRWAY MEMBERS ARE UNFOLDED; MEANS FOR SECURING SAID STAIRWAY MEMBERS WHEN FOLDED WITHIN SAID PACKAGE FORMED BY SAID PLATFORM AND END SECTIONS WHEN FOLDED.

References Cited (Backward Citations)

US938016A Cited
US1085629A Cited
US1148356A Cited
US2438173A Cited
US2760707A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-12-06 1969-06-07 1969-12-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-12-06 1973-06-07 1973-12-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-12-06 1977-06-07 1977-12-07 $7700.00 Window Closed / Lapsed

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