Temporary guard rail system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 18, 2007
Grant Date -
N/A
app pub date -
Oct 31, 2000
filing date -
Apr 14, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved temporary guard rail system for use by residential and commercial builders on construction sites in those areas of building structures where an accidental fall may result in serious bodily injury. In particular, the temporary guard rail system of the present invention includes a plurality of upright stanchions having mounting brackets integrally formed or attached thereto that are connected by a plurality of vertically spaced, generally horizontal side rails extending end to end. The vertically spaced side rails are adapted for 360 degree rotational movement in both horizontal and vertical planes. In addition, the tubular guard rails are fabricated in a plurality of sections that may be slideably engaged, one inside another, to provide a telescoping adjustment of length. The temporary guard rail system may be adapted and secured to various features of a building such as balconies, elevated platforms, stair cases, and the perimeter of a floor prior to the external walls or permanent protective railings being erected to prevent accidental injury. Further, the temporary guard rail system is designed and manufactured to conform to OSHA requirements for temporary guard rails. This system also provides a versatile safety device which is easy to install, ready to dismantle, and relatively inexpensive to manufacture.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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PURVIS HARRISON G | ROUTE 1 BOX 238D HOLLY SPRING NC 27540 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Arnold, Lonnie E | Fuquay-Varina, NC | 1 | 15 |
# of filed Patents : 1 Total Citations : 15 | |||
Matthews, Tony R | Lillington, NC | 2 | 64 |
# of filed Patents : 2 Total Citations : 64 | |||
Purvis, Harrison G | Robbins, NC | 11 | 183 |
# of filed Patents : 11 Total Citations : 183 |
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Patent Citation Ranking
- 15 Citation Count
- E04H Class
- 58.30 % this patent is cited more than
- 18 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Sep 30, 1997 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Nov 01, 1995 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 01, 1993 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Oct 02, 1989 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Jun 26, 1989 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:E. I. DUPONT DE NEMOURS AND COMPANY;REEL/FRAME:005206/0153 Owner name: REEMAY, INC., A SC CORP., SOUTH CAROLINA Effective Date: Jun 26, 1989 |
Oct 31, 1988 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Apr 15, 1986 | I | Issuance | |
Feb 13, 1986 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
May 10, 1985 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:LOU, GENE W.;ZIMMERMAN, LEON H. JR.;REEL/FRAME:004428/0668 Owner name: E.I. DU PONT DE NEMOURS AND COMPANY, WILMINGTON, D Effective Date: May 10, 1985 |
Apr 16, 1985 | F | Filing | |
Apr 16, 1985 | PD | Priority Date |

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