Patent US6463613B1 successfully refreshed from Google Patents.
US6463613B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable ramp
Assignee: Individual
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Filing: 2002-01-15
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Granted: 2002-10-15
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Expires: 2022-01-15
Abstract
Abstract A collapsible, portable ramp assembly, made of light weight materials and of a unitized construction whereby all components are a permanent part of the assembly, and which can be quickly and easily deployed to form a sturdy ramp for a variety of uses. The central, load-bearing portion of the ramp is formed by many light weight, transversely positioned slats, pivotally connected to one another by several flexible straps. Rigid support of the central ramp portion is provided by a pair of strong, light weight braces that simply rotate into a longitudinal position along the ramp sides from their position along the ramp end pieces.
Inventors
- 👤 Laura M. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:27
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/28; B65G69/30; A; A61; A61G; A61G3/00; A61G3/02; A61G3/06; A61G3/061; E; E04; E04F; E04F11/00; E04F11/002; E04F2011/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
242 words
A collapsible, portable ramp, having: a top piece and a bottom piece; said top piece having an upper surface and a lower surface and said bottom piece having an upper surface and a lower surface; a plurality of rigid slats located between said top piece and said bottom piece; a plurality of flexible straps, said straps attached to said slats, said top piece and said bottom piece; a top plate and a bottom plate; a top hinge and a bottom hinge; said top plate is attached to said top piece by said top hinge and said bottom plate is attached to said bottom piece by said bottom hinge; a first brace and a second brace; each brace having a fixed end and a detachable end; said fixed end of said first brace is rotatably attached to said lower surface of said bottom piece; said detachable end of said first brace being detachably received in said lower surface of said bottom piece while in a storage position, and being detachably received in said lower surface of said top piece while in a deployed position; said fixed end of said second brace is rotatably attached to said lower surface of said top piece; and said detachable end of said second brace being detachably connected to said lower surface of said top piece while in a storage position, and being detachably connected to said lower surface of said bottom piece while in a deployed position.
Claim 2
Dependent Claim
242 words
A collapsible, portable ramp, having: a top piece and a bottom piece; said top piece having an upper surface and a lower surface and said bottom piece having an upper surface and a lower surface; a plurality of rigid slats located between said top piece and said bottom piece; a plurality of flexible straps, said straps attached to said slats, said top piece and said bottom piece; a top plate and a bottom plate; a top hinge and a bottom hinge; said top plate is attached to said top piece by said top hinge and said bottom plate is attached to said bottom piece by said bottom hinge; a first brace and a second brace; each brace having a fixed end and a detachable end; said fixed end of said first brace is rotatably attached to said lower surface of said bottom piece; said detachable end of said first brace being detachably received in said lower surface of said bottom piece while in a storage position, and being detachably received in said lower surface of said top piece while in a deployed position; said fixed end of said second brace is rotatably attached to said lower surface of said top piece; and said detachable end of said second brace being detachably connected to said lower surface of said top piece while in a storage position, and being detachably connected to said lower surface of said bottom piece while in a deployed position.
Claim 3
Dependent Claim
14 words
The ramp as set forth in claim 1 wherein said top plate is tapered.
Claim 4
Dependent Claim
14 words
The ramp as set forth in claim 1 wherein said bottom plate is tapered.
Claim 5
Dependent Claim
18 words
The ramp as set forth in claim 1 wherein said top plate and said bottom plate are tapered.
Claim 6
Dependent Claim
19 words
The ramp as set forth in claim 1 wherein at least one of said braces is a telescoping brace.
Claim 7
Dependent Claim
19 words
The ramp as set forth in claim 1 wherein at least one of said braces is a z-shaped brace.
Claim 8
Dependent Claim
19 words
The ramp as set forth in claim 1 wherein at least one of said braces is a folding brace.
Claim 9
Dependent Claim
14 words
The ramp as set forth in claim 1 having a non-skid surface applied thereto.
Claim 10
Dependent Claim
18 words
The ramp as set forth in claim 1 having means for securing said ramp in a rolled-up position.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-10-14 | 2006-04-15 | 2006-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-10-14 | 2010-04-15 | 2010-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-10-14 | 2014-04-15 | 2014-10-15 | $7700.00 | Window Closed / Lapsed |