Patent US1564944A successfully refreshed from Google Patents.
US4790684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roadway warning system
Assignee: SIMULATORS Ltd Inc
•
Filing: 1987-07-16
•
Granted: 1988-12-13
•
Expires: 2007-07-16
Abstract
Abstract A warning system for multi-lane roadways comprising a group of strips placed longitudinally across only the left-most lane of the roadway as referenced by a person facing in the designated direction of traffic flow.
Inventors
- 👤 Wilbur R. Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:11
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/529
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
A warning system for a multi-lane roadway, said system comprising a roadway extending in a first direction and in a second direction, said roadway having a first plurality of lanes designated for traffic flow in said first direction, said system further comprising a plurality of strip members, said strip members having a bottom side and a first edge and a second edge, said first edge being longer than said second edge, wherein said bottom side of said strip members are attached to said roadway in a grouped and spaced fashion such that said first edges are substantially parallel to each other, said group of strip members being placed only in the left-most lane as referenced by persons situated in said first plurality of lanes and facing said first direction and in the right-most lane as referenced by persons situated in said first plurality of lanes and facing opposite said first direction.
Claim 2
Dependent Claim
151 words
A warning system for a multi-lane roadway, said system comprising a roadway extending in a first direction and in a second direction, said roadway having a first plurality of lanes designated for traffic flow in said first direction, said system further comprising a plurality of strip members, said strip members having a bottom side and a first edge and a second edge, said first edge being longer than said second edge, wherein said bottom side of said strip members are attached to said roadway in a grouped and spaced fashion such that said first edges are substantially parallel to each other, said group of strip members being placed only in the left-most lane as referenced by persons situated in said first plurality of lanes and facing said first direction and in the right-most lane as referenced by persons situated in said first plurality of lanes and facing opposite said first direction.
Claim 3
Dependent Claim
19 words
The roadway warning system of claim 1 wherein said bottom side is bounded by said first and second edges.
Claim 4
Dependent Claim
21 words
The roadway warning system of claim 2 wherein said strip members are a color other than the color of the highway.
Claim 5
Dependent Claim
14 words
The warning system of claim 1 wherein said strip members have substantially rectangular cross-sections.
Claim 6
Dependent Claim
24 words
The warning system of claim 1 wherein said strip members extend substantially across said left-most lane as referenced by persons facing said first direction.
Claim 7
Independent Claim
57 words
A method for warning operators of vehicles on a multi-lane roadway having a plurality of lanes designated for traffic flow in a first direction, comprising the step of attaching a plurality of raised, elongated strips transversely across only the left-most lane, as referenced by persons facing said first direction, subsantially near an entrance to the multi-lane roadway.
Claim 8
Independent Claim
57 words
A method for warning operators of vehicles on a multi-lane roadway having a plurality of lanes designated for traffic flow in a first direction, comprising the step of attaching a plurality of raised, elongated strips transversely across only the left-most lane, as referenced by persons facing said first direction, subsantially near an entrance to the multi-lane roadway.
Claim 9
Dependent Claim
23 words
The method of claim 6 further comprising the step of coloring said raised strips a color other than the color of the roadway.
Claim 10
Dependent Claim
51 words
The method of claim 6 further comprising the steps of forming each of said raised strips with an elongated first edge and a second edge, and placing said strips such that said first edge of each of said raised strips is parallel to the first edges of each other raised strip.
References Cited (Backward Citations)
US1740501A
Cited
US2330808A
Cited
US2457512A
Cited
DE878057C
Cited
US4012156A
Cited
US4135839A
Cited
GB2036140A
Cited
US4362424A
Cited
US4342525A
Cited
DE3144577A1
Cited
US4490069A
Cited
GB2175335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-13 | 1992-06-13 | 1992-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-13 | 1996-06-13 | 1996-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-13 | 2000-06-13 | 2000-12-13 | $7700.00 | Window Closed / Lapsed |