Patent US4090464A successfully refreshed from Google Patents.
US4090464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vandal guard sheet
Assignee: Individual
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Filing: 1975-06-25
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Granted: 1978-05-23
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Expires: 1995-06-25
Abstract
Abstract A sheet of clear plastic or vinyl type material having a clear adhesive covering the entire one side thereof so to adhere to a front of a roadway sign and prevent it from becoming defaced by vandals having spray cans of paint; the sheet being readily peeled off and replaced by a fresh sheet after being excessively defaced.
Inventors
- 👤 John H. Bishopp
- 👤 George Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:44
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/002; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1486; Y10T428/16; Y10T428/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A vandal guard sheet sign assembly formed from a plurality of parts comprising a flat sign panel part and a transparent plastic guard sheet part having a transparent adhesive on its inner face whereby said sheet is secured removably on said panel part by means of said adhesive, said panel and sheet parts being of similar dimensions, said assembly including visible indicia permanently enscribed on one of said parts and wherein the sheet and panel parts are in complete planar contact adhesively with each other, when said sheet part is secured to said panel part in further combination with a frame mounted about the periphery of the assembly, said assembly having an exposed bottom edge, whereby said frame is channel shaped in cross-section except for a bottom portion which fits over the bottom edge of said assembly, said bottom portion having spaced outer and inner legs adjacent to a lower opening therebetween providing access to said bottom edge for replacing a used guard sheet, said indicia being imprinted on said panel.
Claim 2
Dependent Claim
171 words
A vandal guard sheet sign assembly formed from a plurality of parts comprising a flat sign panel part and a transparent plastic guard sheet part having a transparent adhesive on its inner face whereby said sheet is secured removably on said panel part by means of said adhesive, said panel and sheet parts being of similar dimensions, said assembly including visible indicia permanently enscribed on one of said parts and wherein the sheet and panel parts are in complete planar contact adhesively with each other, when said sheet part is secured to said panel part in further combination with a frame mounted about the periphery of the assembly, said assembly having an exposed bottom edge, whereby said frame is channel shaped in cross-section except for a bottom portion which fits over the bottom edge of said assembly, said bottom portion having spaced outer and inner legs adjacent to a lower opening therebetween providing access to said bottom edge for replacing a used guard sheet, said indicia being imprinted on said panel.
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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) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |