Patent US3665663A successfully refreshed from Google Patents.
US3665663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draining type gravel guard
Assignee: Individual
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Filing: 1970-07-24
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Granted: 1972-05-30
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Expires: 1990-07-24
Abstract
Abstract A device which prevents water which drains under the gravel on roofs from causing rot and deterioration to the eaves and facial boards. This device allows the water to drain through perforations in its body so that the water will escape to the outside of the facial board. The device is one-piece in construction and has a multiple number of drainage openings for the water to seep into and out of the device, in order that a roof will be dry.
Inventors
- 👤 Frederick W Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 00:41
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/15; E04D13/04; E04D13/0404; E04D13/0459; E04D2013/0472
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
A drain type gravel guard for built-up roofs comprising a hollow vertical portion, a hollow horizontal portion extending from said vertical portion and an upper extension carried by said vertical portion for water drainage from roofs, wherein said drain type gravel guard comprises, in combination, a unitary member includinG a vertical portion and horizontal portion, one edge of horizontal portion being integral with one side of vertical portion extending lower than horizontal portion, each of said portions being comprised of spaced apart flat walls, with space there between so as to allow flow of draining water therethrough, said horizontal portion having an underside which is positioned in spaced apart relation and attached to top edge of roof, the upper portion of said horizontal portion provided with a plurality of openings therethrough so as to allow communication of water settled upon said roof to enter said space between walls of said horizontal portion and said space of said horizontal portion communicating with said space of said vertical portion so that water may be drained from said horizontal into said vertical portion, the opposite ends of said vertical portions having openings to said space so as to permit said water to drain outwardly therefrom and along side of a facial board of said building.
Claim 2
Dependent Claim
212 words
A drain type gravel guard for built-up roofs comprising a hollow vertical portion, a hollow horizontal portion extending from said vertical portion and an upper extension carried by said vertical portion for water drainage from roofs, wherein said drain type gravel guard comprises, in combination, a unitary member includinG a vertical portion and horizontal portion, one edge of horizontal portion being integral with one side of vertical portion extending lower than horizontal portion, each of said portions being comprised of spaced apart flat walls, with space there between so as to allow flow of draining water therethrough, said horizontal portion having an underside which is positioned in spaced apart relation and attached to top edge of roof, the upper portion of said horizontal portion provided with a plurality of openings therethrough so as to allow communication of water settled upon said roof to enter said space between walls of said horizontal portion and said space of said horizontal portion communicating with said space of said vertical portion so that water may be drained from said horizontal into said vertical portion, the opposite ends of said vertical portions having openings to said space so as to permit said water to drain outwardly therefrom and along side of a facial board of said building.
References Cited (Backward Citations)
US3436878A
Cited
US3417570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |