Patent US3938903A successfully refreshed from Google Patents.
US3938903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highway roadmarker with studded bottom
Assignee: M SWAROVSKI CALIFORNIA Inc A CA CORP
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Filing: 1975-01-03
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Granted: 1976-02-17
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Expires: 1995-01-03
Abstract
Abstract There is provided a highway lane divider and roadmarker, adapted to be affixed to a pavement surface. Said marker characterized by a planar base, said base having protruding downwardly therefrom a multiplicity of studs arranged in spaced relationship, and dispersed substantially symmetrically over the area of said base to improve the bonding characteristics of said roadmarker to pavement.
Inventors
- 👤 Paul B. Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:30
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/553
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
128 words
In a highway lane divider and roadmarker, adapted to be affixed to a pavement surface, said marker having a substantially planar base, the improvement of said base having a multiplicity of studs protruding therefrom in spaced relationship, said studs having substantially vertical sides, and bottom surfaces substantially parallel to said base, said studs protruding from said base from about 0.025 inch to about 0.1 inch, said studs spaced apart from each other a distance of from about 1/32 inch to about 1/4 inch, said studs dispersed substantially symmetrically over the area of said base, with the total exposed surface area of said studs, exclusive of their bottom surfaces, representing at least 30% of the total surface area represented by said base and the bottom surfaces of said studs.
Claim 2
Dependent Claim
128 words
In a highway lane divider and roadmarker, adapted to be affixed to a pavement surface, said marker having a substantially planar base, the improvement of said base having a multiplicity of studs protruding therefrom in spaced relationship, said studs having substantially vertical sides, and bottom surfaces substantially parallel to said base, said studs protruding from said base from about 0.025 inch to about 0.1 inch, said studs spaced apart from each other a distance of from about 1/32 inch to about 1/4 inch, said studs dispersed substantially symmetrically over the area of said base, with the total exposed surface area of said studs, exclusive of their bottom surfaces, representing at least 30% of the total surface area represented by said base and the bottom surfaces of said studs.
Claim 3
Dependent Claim
24 words
The article of claim 1 wherein said studs are spaced apart from each other a distance of from about 1/16 inch to 1/8 inch.
Claim 4
Dependent Claim
13 words
The article of claim 1 whereon said studs have a cylindrical cross section.
Claim 5
Dependent Claim
13 words
The article of claim 2 whereon said studs have a cylindrical cross section.
References Cited (Backward Citations)
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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) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |