US5065873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelf frame
Assignee: Individual
•
Filing: 1991-05-16
•
Granted: 1991-11-19
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Expires: 2011-05-16
Abstract
Abstract A shelf frame includes a first, a second, a third and a fourth leg device. Each of these leg devices includes an upper end, a lower end and a pair of elongated rods spaced apart from one another in parallel relationship and clamped by a plurality of clamping members. Each clamping member has a through-hole formed therein. A pair of connecting members, each has two ends respectively and correspondingly connecting the uppers end of the first and second leg devices to form a first inverted U-shaped frame, and the uppers ends of the third and fourth leg devices to form a second inverted U-shaped frame. The lower end of each leg device has a support on which the leg device stands. A transverse rod has two ends respectively connected to one clamping member on the first leg device and another clamping member on the second leg device. A rectangular plate has a pair of opposite sides each provided with at least one hook to engage the transverse rods.
Inventors
- 👤 Chun-Chu Tseng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:30
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30; A47B57/54
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
A shelf frame comprising: a first, a second, a third and a fourth leg means, each of said leg means having an upper and a lower end, and each including a pair of elongated rods spaced apart from one another in a parallel relationship; clamping members to clamp said pair of elongated rods of each of said first, said second, said third, and said fourth leg means; transverse connecting rods to interconnect one of said clamping members on said first leg means with another one of said clamping members on said second leg means, and to interconnect one of said clamping members on said third leg means with another one of said clamping members on said fourth leg means; and at least one rectangular plate having two opposite sides each being provided with at least one hook engaging one of said transverse connecting rods.
Claim 2
Dependent Claim
144 words
A shelf frame comprising: a first, a second, a third and a fourth leg means, each of said leg means having an upper and a lower end, and each including a pair of elongated rods spaced apart from one another in a parallel relationship; clamping members to clamp said pair of elongated rods of each of said first, said second, said third, and said fourth leg means; transverse connecting rods to interconnect one of said clamping members on said first leg means with another one of said clamping members on said second leg means, and to interconnect one of said clamping members on said third leg means with another one of said clamping members on said fourth leg means; and at least one rectangular plate having two opposite sides each being provided with at least one hook engaging one of said transverse connecting rods.
Claim 3
Dependent Claim
24 words
A shelf frame as claimed in claim 1, wherein said lower end of each of said leg means has a support means attached thereto.
Claim 4
Dependent Claim
41 words
A shelf frame as claimed in claim 1, wherein each of said clamping members includes two clamping pieces, each being provided with a pair of grooves correspondingly and respectively aligned with another pair of said grooves in another said clamping piece.
Claim 5
Dependent Claim
43 words
A shelf frame as claimed in claim 3, wherein said transverse connecting rods, each has a first end integrally formed with one clamping piece of said clamping member, and a second end integrally formed with another clamping piece of another said clamping member.
Claim 6
Dependent Claim
110 words
A shelf frame as claimed in claim 1, wherein said shelf frame further comprises a pair of connecting members, one of which interconnects said upper ends of said first and second leg means to form a first inverted U-shaped frame, the other one of which said third and fourth leg means to form a second inverted U-shaped frame, and a pair of reinforcing rods, each of said reinforcing rods having one end connected to a lower point on said first U-shaped frame and the other end of said reinforcing rod connected to an upper point on said second U-shaped frame, forming a cross between said first and second U-shaped frames.
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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) | 1994-11-18 | 1995-05-20 | 1995-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-18 | 1999-05-20 | 1999-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-18 | 2003-05-20 | 2003-11-19 | $7700.00 | Window Closed / Lapsed |