US3232187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road safety edge
Assignee: Individual
•
Filing: 1962-06-04
•
Granted: 1966-02-01
•
Expires: 1982-06-04
Abstract
No abstract record available.
Inventors
- 👤 Brigham Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 22:03
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/02; E01F15/04; E01F15/0492; E01C; E01C11/00; E01C11/22; E01C11/221; E01C11/222; E01F15/08; E01F15/081; E01F15/083; E01F9/00; E01F9/50; E01F9/535
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A SAFETY EDGE FOR ROADWAYS CONSTRUCTED OF CONCRETE AND ASPHALTIC MATERIALS, COMPRISING: AN INCLINED SURFACE LOCATED AT THE EDGE OF SAID ROADWAY, SAID INCLINED SURFACE MERGING WITH THE ROADWAY EDGE AND SLOPING DOWNWARDLY AND AWAY FROM SAID EDGE AT SUCH AN ANGLE AS TO ALLOW A VEHICLE TIRE TO CONTACT AND RIDE ON SAID SURFACE, SAID INCLINED SURFACE BEING FINISHED AND HAVING A MINIMUM COEFFICIENT OF FRICTION WITH TIRES RIDING THEREON; SAID INCLINED SURFACE HAVING AN ANGLE OF INCLINE FROM THE HORIZONTAL GREATER THAN THE ARCTANGENT OF SAID COEFICIENT OF FRICTION; AND A SUBSTANTIALLY LEVEL PORTION JOINED TO THE BOTTOM OF SAID INCLINED SURFACE, THE VERTICAL DISTANCE BETWEEN SAID CREST AND SAID LEVEL PORTION BEING SUCH AS TO PREVENT CONTACT OF AN AUTOMOBILE UNDER CARRIAGE ON SAID CREST, WHEN ONE WHEEL IS ONE SIDE LEVEL PORTION AND ITS OPPOSED WHEEL IS ON SAID ROADWAY.
Claim 2
Dependent Claim
144 words
A SAFETY EDGE FOR ROADWAYS CONSTRUCTED OF CONCRETE AND ASPHALTIC MATERIALS, COMPRISING: AN INCLINED SURFACE LOCATED AT THE EDGE OF SAID ROADWAY, SAID INCLINED SURFACE MERGING WITH THE ROADWAY EDGE AND SLOPING DOWNWARDLY AND AWAY FROM SAID EDGE AT SUCH AN ANGLE AS TO ALLOW A VEHICLE TIRE TO CONTACT AND RIDE ON SAID SURFACE, SAID INCLINED SURFACE BEING FINISHED AND HAVING A MINIMUM COEFFICIENT OF FRICTION WITH TIRES RIDING THEREON; SAID INCLINED SURFACE HAVING AN ANGLE OF INCLINE FROM THE HORIZONTAL GREATER THAN THE ARCTANGENT OF SAID COEFICIENT OF FRICTION; AND A SUBSTANTIALLY LEVEL PORTION JOINED TO THE BOTTOM OF SAID INCLINED SURFACE, THE VERTICAL DISTANCE BETWEEN SAID CREST AND SAID LEVEL PORTION BEING SUCH AS TO PREVENT CONTACT OF AN AUTOMOBILE UNDER CARRIAGE ON SAID CREST, WHEN ONE WHEEL IS ONE SIDE LEVEL PORTION AND ITS OPPOSED WHEEL IS ON SAID ROADWAY.
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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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |