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US3194413A Expired / Lapsed US ⏱️ 0.0 years remaining

Extendable boom

Assignee: Individual
•
Filing: 1962-10-08
•
Granted: 1965-07-13
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Expires: 1982-10-08
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Abstract

No abstract record available.

Inventors

  • 👤 Louis J Landry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 19:11
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/62; B66C23/72; B66C2700/00; B66C2700/03; B66C2700/0392

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 140 words
IN COMBINATION, A MOUNTING FRAME, AN UPSTANDING BOOM PIVOTALLY SECURED AT ITS LOWER END TO SAID FRAME FOR MOVEMENT ABOUT A HORIZONTAL AXIS, SAID BOOM INCLUDING UPPER INNER AND LOWER OUTER SECTIONS MOUNTED TOGETHER FOR RELATIVE MOVEMENT BETWEEN EXTENDED AND RETRACTED POSITIONS, A GANTRY ASSEMBLY SUPPORTED FROM SAID FRAME AND ELEVATED ABOVE THE LOWER END OF SAID LOWER SECTION, A FIRST CABLE SUPPORTING SAID BOOM AND HAVING ONE END OPERATIVELY CONNECTED TO REVERSIBLE WINDING MEANS CARRIED BY SAID LOWER SECTION AND THE OTHER END CONNECTED TO SAID UPPER SECTION, MEANS REEVING SAID FIRST CABLE BETWEEN SAID WINDING MEANS, SAID GANTRY, AND THE UPPER END OF SAID UPPER SECTION, A SECOND LIFT CABLE HAVING ONE END OPERATIVELY CONNECTED TO SAID WINDING MEANS AND THE OTHER END CONNECTED TO THE LOWER END OF SAID UPPER SECTION, MEANS REEVING SAID SECOND CABLE BE-
Claim 2
Dependent Claim 140 words
IN COMBINATION, A MOUNTING FRAME, AN UPSTANDING BOOM PIVOTALLY SECURED AT ITS LOWER END TO SAID FRAME FOR MOVEMENT ABOUT A HORIZONTAL AXIS, SAID BOOM INCLUDING UPPER INNER AND LOWER OUTER SECTIONS MOUNTED TOGETHER FOR RELATIVE MOVEMENT BETWEEN EXTENDED AND RETRACTED POSITIONS, A GANTRY ASSEMBLY SUPPORTED FROM SAID FRAME AND ELEVATED ABOVE THE LOWER END OF SAID LOWER SECTION, A FIRST CABLE SUPPORTING SAID BOOM AND HAVING ONE END OPERATIVELY CONNECTED TO REVERSIBLE WINDING MEANS CARRIED BY SAID LOWER SECTION AND THE OTHER END CONNECTED TO SAID UPPER SECTION, MEANS REEVING SAID FIRST CABLE BETWEEN SAID WINDING MEANS, SAID GANTRY, AND THE UPPER END OF SAID UPPER SECTION, A SECOND LIFT CABLE HAVING ONE END OPERATIVELY CONNECTED TO SAID WINDING MEANS AND THE OTHER END CONNECTED TO THE LOWER END OF SAID UPPER SECTION, MEANS REEVING SAID SECOND CABLE BE-

References Cited (Backward Citations)

US2545047A Cited
US2819803A Cited
US3029954A Cited
US3073457A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-07-12 1969-01-11 1969-07-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-07-12 1973-01-11 1973-07-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-07-12 1977-01-11 1977-07-13 $7700.00 Window Closed / Lapsed

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