US4249357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic-resin road marker and method of molding same
Assignee: Allibert Exploitation SA
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Filing: 1978-09-28
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Granted: 1981-02-10
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Expires: 1998-09-28
Abstract
Abstract A tubular synthetic-resin body usable as a roadway marker comprises spaced upper and lower tubular parts interconnected by thin webs formed integrally with the upper and lower parts. A middle part of contrasting color lies between these upper and lower parts and has grooves receiving the connecting webs. Such a roadway marker is made by fitting the middle part over a core of a mold, and then injecting synthetic-resin material into the mold around this sleeve so as to form the upper and lower parts and the web.
Inventors
- 👤 Jean Cornou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:32
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; E; E01; E01F; E01F9/00; E01F9/60; E01F9/604; E01F9/608; Y; Y10; Y10T; Y10T428/00; Y10T428/22; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24537; Y10T428/2457; Y10T428/24612
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
A synthetic-resin body comprising: a synthetic-resin tubular lower part; a synthetic-resin tubular upper part spaced longitudinally from said lower part and of substantially the same cross-section as said lower part; a plurality of longitudinally extending strip webs unitary with and interconnecting said upper and lower parts; and a tubular middle part between said upper and lower parts, of substantially the same external cross-sectional shape as said upper and lower parts, and formed with inwardly open grooves complementary to and snugly receiving said webs.
Claim 2
Dependent Claim
83 words
A synthetic-resin body comprising: a synthetic-resin tubular lower part; a synthetic-resin tubular upper part spaced longitudinally from said lower part and of substantially the same cross-section as said lower part; a plurality of longitudinally extending strip webs unitary with and interconnecting said upper and lower parts; and a tubular middle part between said upper and lower parts, of substantially the same external cross-sectional shape as said upper and lower parts, and formed with inwardly open grooves complementary to and snugly receiving said webs.
Claim 3
Dependent Claim
16 words
The body defined in claim 1 wherein said middle and upper parts are of contrasting appearance.
Claim 4
Dependent Claim
15 words
The body defined in claim 1 wherein said upper part has a closed upper end.
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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) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |