Patent US4217741A successfully refreshed from Google Patents.
US4217741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal roof panel structure
Assignee: Individual
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Filing: 1978-09-12
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Granted: 1980-08-19
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Expires: 1998-09-12
Abstract
Abstract A metal roof panel structure characterized by roof panels interconnected by a metal roof clip which extends between the juncture of contiguous roof panels and an upwardly projecting reinforcing portion disposed in the mid-area of each roof panel. Strength is further afforded by the crimping of the connected ends of the roof panels and the reinforcing portion on each roof panel and, additionally, a sealant is provided for weatherproofing purposes.
Inventors
- 👤 Randall L. Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:04
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/36; E04D3/361; E04D3/364
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
174 words
A metal roof panel structure comprising a first panel, a second panel, and a roof clip interconnecting said first panel and said second panel, said first panel and said second panel each having an end portion extending upwardly, downwardly and outwardly and an opposite end portion extending upwardly, downwardly and inwardly, said first panel and said second panel each having an upwardly extending hollow portion at the mid-area thereof, and said roof clip having one end sandwiched between contiguous end portions of said first panel and said second panel which overlie in the same direction and hooking over the end portion of one of said panels to define a multi-layered overlapping assembled seam and an opposite end which extends into said upwardly extending hollow portion of a panel, where the seam between said first panel and said second panel including said one end of said roof clip is crimped and where said upwardly extending hollow portion of a panel including said opposite end of said roof clip is crimped, all in a watertight relationship.
Claim 2
Dependent Claim
174 words
A metal roof panel structure comprising a first panel, a second panel, and a roof clip interconnecting said first panel and said second panel, said first panel and said second panel each having an end portion extending upwardly, downwardly and outwardly and an opposite end portion extending upwardly, downwardly and inwardly, said first panel and said second panel each having an upwardly extending hollow portion at the mid-area thereof, and said roof clip having one end sandwiched between contiguous end portions of said first panel and said second panel which overlie in the same direction and hooking over the end portion of one of said panels to define a multi-layered overlapping assembled seam and an opposite end which extends into said upwardly extending hollow portion of a panel, where the seam between said first panel and said second panel including said one end of said roof clip is crimped and where said upwardly extending hollow portion of a panel including said opposite end of said roof clip is crimped, all in a watertight relationship.
Claim 3
Dependent Claim
22 words
The metal roof panel structure of claim 1 where a sealant is received within the outwardly extending end portion of a panel.
Claim 4
Dependent Claim
17 words
The metal roof panel structure of claim 1 where said roof clip is secured to a truss.
Claim 5
Dependent Claim
21 words
The metal roof panel structure of claim 1 where said opposite end of said roof clip has a turned back end.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-19 | 1984-02-18 | 1984-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-19 | 1988-02-18 | 1988-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-19 | 1992-02-18 | 1992-08-19 | $7700.00 | Window Closed / Lapsed |