Patent US5040811A successfully refreshed from Google Patents.
← Back to Patent Explorer
US5040811A Expired / Lapsed US ⏱️ 0.0 years remaining

Molded plastic utility cart

Assignee: Individual
•
Filing: 1989-04-24
•
Granted: 1991-08-20
•
Expires: 2009-04-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A molded multipurpose utility cart with wheels large enough to transfer uneven or rough surfaces. The cart having a handle high enough for operator manipulation of the cart with one hand without bending of the torso. Two supports on the front and back of the cart permit the towing of one or a series of carts in tandem. The carts fabricated of molded plastic of sufficient strength and rigidity to serve as laundry carts, rubbish carts, and material handling carts.

Inventors

  • 👤 Dennis D. Busken
  • 👤 Elaine L. Busken

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 14:06
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/002; B62B3/003; B62B3/004; B62B2202/00; B62B2202/66; B62B2501/00; B62B2501/06; B62B2501/065

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 197 words
A multipurpose utility cart comprising: a. a receptacle molded of a plastic material; b. the receptacle having a transverse top handle extending upwardly from a rear top edge of the receptacle; c. said rear top edge of the receptacle is molded into an elliptical cross section for increased support for the handle; d. a first tow handle affixed to a lower, front, central portion of the receptacle; e. a second tow handle affixed to a lower, back central portion of the receptacle; f. four sides of the receptacle having a plurality of horizontal slotted openings; g. horizontal edges of the horizontal slotted openings being molded outwards to provide stiffness to the sides of the receptacle; h. the receptacle has a reinforcing plate on a bottom of the receptacle for added support and for attaching a plurality of wheel mountings; i. four rotatable wheel support castors, mounted on corners of the bottom of the plate; j. a plurality of rubber-tired wheels, exceeding five inches in diameter, are mounted in the wheel support castors; and k. a top of the transverse top handle ranges in height from three to four feet high measured from the bottom of the wheels.
Claim 2
Dependent Claim 197 words
A multipurpose utility cart comprising: a. a receptacle molded of a plastic material; b. the receptacle having a transverse top handle extending upwardly from a rear top edge of the receptacle; c. said rear top edge of the receptacle is molded into an elliptical cross section for increased support for the handle; d. a first tow handle affixed to a lower, front, central portion of the receptacle; e. a second tow handle affixed to a lower, back central portion of the receptacle; f. four sides of the receptacle having a plurality of horizontal slotted openings; g. horizontal edges of the horizontal slotted openings being molded outwards to provide stiffness to the sides of the receptacle; h. the receptacle has a reinforcing plate on a bottom of the receptacle for added support and for attaching a plurality of wheel mountings; i. four rotatable wheel support castors, mounted on corners of the bottom of the plate; j. a plurality of rubber-tired wheels, exceeding five inches in diameter, are mounted in the wheel support castors; and k. a top of the transverse top handle ranges in height from three to four feet high measured from the bottom of the wheels.
Claim 3
Dependent Claim 16 words
A cart as described in claim 1 wherein the reinforcing plate comprises being made of metal.
Claim 4
Dependent Claim 16 words
A cart as described in claim 1 wherein the reinforcing plate comprises being made of wood.

References Cited (Backward Citations)

US504476A Cited
CA580711A Cited
US920827A Cited
US1293512A Cited
US1752687A Cited
US2037291A Cited
US2676729A Cited
US3005572A Cited
US3162462A Cited
US3252712A Cited
US3318612A Cited
US4597503A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-08-19 1995-02-18 1995-08-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-08-19 1999-02-18 1999-08-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-08-19 2003-02-18 2003-08-20 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag