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US3172121A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrically operated fastener driving tool

Assignee: Duo Fast Corp
•
Filing: 1963-04-01
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Granted: 1965-03-09
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Expires: 1983-04-01
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Abstract

No abstract record available.

Inventors

  • 👤 Richard H Doyle
  • 👤 Leroy N Hermann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 21:38
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 168 words
A FASTENER DRIVING TOOL COMPRISING A HOUSING STRUCTURE DEFINING A GENERALLY CYLINDRICAL AND VERTICALLY EXTENDIONG CHAMBER COMMUNICATING WITH A DRIVE TRACK AT ITS LOWER END, WINDING MEANS HAVING AN AXIAL OPENING AND AN UPWARDLY PROJECTING LOCATING STRUCTURE AT ITS UPPER END, SAID WINDING MEANS BEING DISPOSED IN THE CHAMBER WITH THE AXIAL OPENING IN ALIGNMENT WITH THE DRIVE TRACK, SPIDER MEANS HAVING A CENTRAL OPENING IN WHICH THE UPWARDLY PROJECTING LOCATING STRUCTURE ON THE WINDING MEANS IS RECEIVED, DETACHABLE FASTENER MEANSF ENGAGING THE WALL OF THE CHAMBER AND BEARING AGAINST AN OUTER PORTION OF THE SPIDER MEANS TO SECURE THE SPIDER MEANS AND THE WINDING MEANS IN A DESIRED POSITION WITHIN THE CHAMBER, THE ENGAGEMENT OF THE LOCATING STRUCTURE BY THE SPIDER MEANS HOLDING THE WINDING MEANS IN AN UPRIGHT POSITION WITHIN THE CHAMBER SPACED FROM THE INNER WALL OF THE HOUSING TO PROVIDE A GENERALLY ANNULAR AIR SPACE SURROUNDING THE WINDING MEANS, SAID HOUSING STRUCTURE HAVING AT LEAST ONE OPENING COMMUNICATING WITH THE ANNULAR AIR SPACE AD-
Claim 2
Dependent Claim 168 words
A FASTENER DRIVING TOOL COMPRISING A HOUSING STRUCTURE DEFINING A GENERALLY CYLINDRICAL AND VERTICALLY EXTENDIONG CHAMBER COMMUNICATING WITH A DRIVE TRACK AT ITS LOWER END, WINDING MEANS HAVING AN AXIAL OPENING AND AN UPWARDLY PROJECTING LOCATING STRUCTURE AT ITS UPPER END, SAID WINDING MEANS BEING DISPOSED IN THE CHAMBER WITH THE AXIAL OPENING IN ALIGNMENT WITH THE DRIVE TRACK, SPIDER MEANS HAVING A CENTRAL OPENING IN WHICH THE UPWARDLY PROJECTING LOCATING STRUCTURE ON THE WINDING MEANS IS RECEIVED, DETACHABLE FASTENER MEANSF ENGAGING THE WALL OF THE CHAMBER AND BEARING AGAINST AN OUTER PORTION OF THE SPIDER MEANS TO SECURE THE SPIDER MEANS AND THE WINDING MEANS IN A DESIRED POSITION WITHIN THE CHAMBER, THE ENGAGEMENT OF THE LOCATING STRUCTURE BY THE SPIDER MEANS HOLDING THE WINDING MEANS IN AN UPRIGHT POSITION WITHIN THE CHAMBER SPACED FROM THE INNER WALL OF THE HOUSING TO PROVIDE A GENERALLY ANNULAR AIR SPACE SURROUNDING THE WINDING MEANS, SAID HOUSING STRUCTURE HAVING AT LEAST ONE OPENING COMMUNICATING WITH THE ANNULAR AIR SPACE AD-

References Cited (Backward Citations)

US1723607A Cited
US1837197A Cited
US757991A Cited
US864259A Cited
US1128036A Cited
US2572012A Cited
US3017636A Cited
US2967302A Cited
AT216983B Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-03-08 1968-09-07 1969-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-03-08 1972-09-07 1973-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-03-08 1976-09-07 1977-03-09 $7700.00 Window Closed / Lapsed

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