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US3339874A Expired / Lapsed US ⏱️ 0.0 years remaining

Easels

Assignee: Individual
•
Filing: 1965-08-05
•
Granted: 1967-09-05
•
Expires: 1985-08-05
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Abstract

No abstract record available.

Inventors

  • 👤 Kerstens Leif

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 16:25
CPC Classifications
A; A47; A47B; A47B97/00; A47B97/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 238 words
AN EASEL COMPRISING A PLATE MEMBER HAVING SUPPORTING MEANS FOR STANDING ON A BASE SURFACE IN A SUBSTANTIALLY VERTICAL POSITION AND BRACKET MEANS LOCATED AT EACH SIDE OF SAID PLATE MEMBER ADJACENT THE TOP THEREOF, SAID BRACKETS HAVING A SUBSTANTIALLY HORIZONTALLY PROTRUDING BOTTOM PORTION AND A FRONT PORTION EXTENDING UPWARDLY FROM THE OUTER END THEREOF, A CROSS BAR HAVING A SUBSTANTIALLY PLANE FRONT SIDE BEING REMOVABLY SUPPORTED IN SAID BRACKETS BY RESTING WITH THE LOWER SURFACE OF OPPOSITE END PORTIONS ON SAID BOTTOM PORTIONS OF SAID BRACKETS, SAID CROSS BAR BEING PROVIDED WITH PROTRUDING SURFACES FACING OPPOSITE SIDE EDGES OF SAID BRACKETS RESPECTIVELY IN ORDER TO PREVENT SUBSTANTIAL LATERAL DISPLACEMENT OF SAID CROSS BAR IN SAID BRACKETS, SAID CROSS BAR FURTHER BEING PROVIDED WITH AN ELONGATED PAPER HOLDING RAIL HAVING A PLATE PORTION AND A BACKWARDLY PROTRUDING RIB LOCATED ADJACENT THE UPPER EDGE OF SAID PLATE PORTION, THE REAR EDGE OF SAID RIB ENGAGING SAID FRONT SURFACE OF SAID CROSS BAR, A NUMBER OF CLAMPING BOLTS BEING INTERPOSED BETWEEN SAID CROSS BAR AND SAID PAPER HOLDING RAIL IN THE SPACE BETWEEN SAID RIB AND THE LOWER EDGE OF SAID PLATE PORTION OF SAID PAPER HOLDING RAIL SO AS TO ENABLE SAID LOWER EDGE TO BE PRESSED AGAINST THE TOP EDGE PORTION OF A BUNCH OF PAPER SHEETS INSERTED BETWEEN SAID CROSS BAR AND SAID PAPER HOLDING RAIL UNDERNEATH SAID CLAMPING BOLTS IN RESPONSE TO THESE BOLTS BEING TIGHTENED.
Claim 2
Dependent Claim 238 words
AN EASEL COMPRISING A PLATE MEMBER HAVING SUPPORTING MEANS FOR STANDING ON A BASE SURFACE IN A SUBSTANTIALLY VERTICAL POSITION AND BRACKET MEANS LOCATED AT EACH SIDE OF SAID PLATE MEMBER ADJACENT THE TOP THEREOF, SAID BRACKETS HAVING A SUBSTANTIALLY HORIZONTALLY PROTRUDING BOTTOM PORTION AND A FRONT PORTION EXTENDING UPWARDLY FROM THE OUTER END THEREOF, A CROSS BAR HAVING A SUBSTANTIALLY PLANE FRONT SIDE BEING REMOVABLY SUPPORTED IN SAID BRACKETS BY RESTING WITH THE LOWER SURFACE OF OPPOSITE END PORTIONS ON SAID BOTTOM PORTIONS OF SAID BRACKETS, SAID CROSS BAR BEING PROVIDED WITH PROTRUDING SURFACES FACING OPPOSITE SIDE EDGES OF SAID BRACKETS RESPECTIVELY IN ORDER TO PREVENT SUBSTANTIAL LATERAL DISPLACEMENT OF SAID CROSS BAR IN SAID BRACKETS, SAID CROSS BAR FURTHER BEING PROVIDED WITH AN ELONGATED PAPER HOLDING RAIL HAVING A PLATE PORTION AND A BACKWARDLY PROTRUDING RIB LOCATED ADJACENT THE UPPER EDGE OF SAID PLATE PORTION, THE REAR EDGE OF SAID RIB ENGAGING SAID FRONT SURFACE OF SAID CROSS BAR, A NUMBER OF CLAMPING BOLTS BEING INTERPOSED BETWEEN SAID CROSS BAR AND SAID PAPER HOLDING RAIL IN THE SPACE BETWEEN SAID RIB AND THE LOWER EDGE OF SAID PLATE PORTION OF SAID PAPER HOLDING RAIL SO AS TO ENABLE SAID LOWER EDGE TO BE PRESSED AGAINST THE TOP EDGE PORTION OF A BUNCH OF PAPER SHEETS INSERTED BETWEEN SAID CROSS BAR AND SAID PAPER HOLDING RAIL UNDERNEATH SAID CLAMPING BOLTS IN RESPONSE TO THESE BOLTS BEING TIGHTENED.

References Cited (Backward Citations)

US317510A Cited
US674069A Cited
US1654868A Cited
GB795707A Cited
US3145966A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-09-04 1971-03-06 1971-09-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-09-04 1975-03-06 1975-09-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-09-04 1979-03-06 1979-09-05 $7700.00 Window Closed / Lapsed

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