← Back to Patent Explorer
US3215051A Expired / Lapsed US ⏱️ 0.0 years remaining

Marking of roadways

Assignee: Individual
•
Filing: 1961-12-01
•
Granted: 1965-11-02
•
Expires: 1981-12-01
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Jr Edwin R Gill

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 05:14
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/506; E01F9/518

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 167 words
A ROADWAY HAVING AN UPPER ASPHALT BLACK TOPPED SURFACE WITH AN IMPROVED NIGHT-TIME VISIBILITY WITHOUT SUBSTANTIALLY CHANGING ITS DAYLIGHT APPEARANCE COMPRISING AT LEAST ONE REFLEX REFLECTING LANE LINE ON SAID UPPER SURFACE DIVIDING THE ROADWAY INTO TRAFFIC LANES, SAID LANE LINES BEING VISIBLE IN DAYLIGHT AND BRILLIANTLY REFLEX REFLECTING AT NIGHT, SAID LANE LINES CONTAINING A CONCENTRATED AMOUNT OF SMALL SPHERICAL REFLECTING UNITS, EACH HAVING A DIAMETER OF 1/2-30 MILS, PARTIALLY EMBEDDED IN A REFLECTING BINDER, AND A PLURALITY OF SMALL SPHERICAL REFLECTING UNITS EACH HAVING A DIAMETER OF 1/2-30 MILS PARTIALLY EMBEDDED INTO THE UPPER SURFACES OF EACH SAID TRAFFIC LANE, SAID LATTER REFLECTING UNITS BEING RELATIVELY DISPERSED WITH RESPECT TO EACH OTHER SO AS TO BE RELATIVELY INVISIBLE IN DAYLIGHT, SAID LATTER REFLECTING UNITS BEING PARTIALLY EMBEDDED INTO VIRTUALLY THE ENTIRE WIDTH OF THE TRAFFIC LANE AND EXTENDING CONTINUOUSLY LONGITUDINALLY ALONG THE TRAFFIC LANE SO AS TO REFLECT BACK LIGHT AT NIGHT AS A CONTINUOUS CARPET OF LIGHT COVERING THE TRAFFIC LANE FOR GUIDING MOTORISTS.
Claim 2
Dependent Claim 167 words
A ROADWAY HAVING AN UPPER ASPHALT BLACK TOPPED SURFACE WITH AN IMPROVED NIGHT-TIME VISIBILITY WITHOUT SUBSTANTIALLY CHANGING ITS DAYLIGHT APPEARANCE COMPRISING AT LEAST ONE REFLEX REFLECTING LANE LINE ON SAID UPPER SURFACE DIVIDING THE ROADWAY INTO TRAFFIC LANES, SAID LANE LINES BEING VISIBLE IN DAYLIGHT AND BRILLIANTLY REFLEX REFLECTING AT NIGHT, SAID LANE LINES CONTAINING A CONCENTRATED AMOUNT OF SMALL SPHERICAL REFLECTING UNITS, EACH HAVING A DIAMETER OF 1/2-30 MILS, PARTIALLY EMBEDDED IN A REFLECTING BINDER, AND A PLURALITY OF SMALL SPHERICAL REFLECTING UNITS EACH HAVING A DIAMETER OF 1/2-30 MILS PARTIALLY EMBEDDED INTO THE UPPER SURFACES OF EACH SAID TRAFFIC LANE, SAID LATTER REFLECTING UNITS BEING RELATIVELY DISPERSED WITH RESPECT TO EACH OTHER SO AS TO BE RELATIVELY INVISIBLE IN DAYLIGHT, SAID LATTER REFLECTING UNITS BEING PARTIALLY EMBEDDED INTO VIRTUALLY THE ENTIRE WIDTH OF THE TRAFFIC LANE AND EXTENDING CONTINUOUSLY LONGITUDINALLY ALONG THE TRAFFIC LANE SO AS TO REFLECT BACK LIGHT AT NIGHT AS A CONTINUOUS CARPET OF LIGHT COVERING THE TRAFFIC LANE FOR GUIDING MOTORISTS.

References Cited (Backward Citations)

US2070432A Cited
US2366715A Cited
US2355430A Cited
US2345644A Cited
US2574971A Cited
US2838408A Cited
US2963378A Cited
US2882632A Cited
US3103859A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-11-01 1969-05-03 1969-11-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-11-01 1973-05-03 1973-11-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-11-01 1977-05-03 1977-11-02 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag