Patent US4775888A successfully refreshed from Google Patents.
Patent US5316406A successfully refreshed from Google Patents.
US5316406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface marker strip and methods for providing improved integrity and adhesion to roadway and the like
Assignee: BRITE-LINE INDUSTRIES Inc
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Filing: 1992-08-17
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Granted: 1994-05-31
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Expires: 2012-08-17
Abstract
Abstract An improved roadway marker rubber-like strip in which the upper layer is deformed into protruberances such as wedges or ridges, preferably provided with a coating of exposed retro-reflective beads, that have been cross-link-vulcanized to provide the same with memory that permits shape restoration following depression by vehicle traffic, and a cold-flow un-vulcanized bottom layer adhered to the roadway and conforming without memory to the same under vehicle traffic.
Inventors
- 👤 Charles W. Wyckoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:04
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/576; E01F9/578
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
A roadway marker strip for adhesive attachment along a bottom surface of the strip to a roadway, comprising a rubber-like sheet having a bottom layer and flat surface which posses cold-flow substantially memory-free characteristics and an upper layer and surface from which incident light from a vehicle traveling along the roadway may be reflected to indicate a roadway direction, said upper layer and surface of the sheet only being cross-link-vulcanized so as to possess substantial memory enabling restoration of depression of the upper surface caused by a vehicle, while the sheet bottom layer remains unvulcanized and conformably adheres to the roadway.
Claim 2
Dependent Claim
101 words
A roadway marker strip for adhesive attachment along a bottom surface of the strip to a roadway, comprising a rubber-like sheet having a bottom layer and flat surface which posses cold-flow substantially memory-free characteristics and an upper layer and surface from which incident light from a vehicle traveling along the roadway may be reflected to indicate a roadway direction, said upper layer and surface of the sheet only being cross-link-vulcanized so as to possess substantial memory enabling restoration of depression of the upper surface caused by a vehicle, while the sheet bottom layer remains unvulcanized and conformably adheres to the roadway.
Claim 3
Dependent Claim
29 words
A roadway marker strip as claimed in claim 1, and in which the said upper layer and surface is modified by successively positioned partially embedded retroreflective bead protuberances therein.
Claim 4
Dependent Claim
24 words
A roadway marker strip as claimed in claim 1, and in which the said upper layer and surface contains successively positioned retroreflective beads therein.
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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) | 1997-05-30 | 1997-11-29 | 1998-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-30 | 2001-11-29 | 2002-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-30 | 2005-11-29 | 2006-05-31 | $7700.00 | Window Closed / Lapsed |