Patent US3240132A successfully refreshed from Google Patents.
US3240132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflective and retro-reflective traffic marker
Assignee: Botts Line Inc
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Filing: 1963-10-31
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Granted: 1966-03-15
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Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Grant A Wiswell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:36
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A TRAFFIC MARKER COMPRISING A UNITARY PIECE OF TOUGH, HARD PLASTIC, WHEREIN THE BOTTOM SURFACE IS SUBSTANTIALLY FLAT AND ROUGHENED AND THE TOP SURFACE IS A SURFACE OF REVOLUTION OF ELLIPTICAL CROSS-SECTION WHEREIN, IN AREAS IN WHICH A TANGENT DRAWN THERETO MAKES AN ANGLE TO THE GENERAL PERPENDICULAR OF LESS THAN 109*, SAID TOP SURFACE IS FORMED WITH SHALLOW INDENTATIONS IN PATTERNS PROVIDING REFLECTIVE SURFACES, SAID INDENTATIONS BEING IN A WAFFLE PATTERN, SAID MARKER DIVIDED INTO TWO ZONES ALONG A SUBSTANTIALLY HORIZONTAL PLANE, ONE BEING REFLECTIVE AND THE OTHER RETRO-REFLECTIVE, SAID WAFFLE PATTERN FORMED IN THE UPPER ZONE.
Claim 2
Dependent Claim
98 words
A TRAFFIC MARKER COMPRISING A UNITARY PIECE OF TOUGH, HARD PLASTIC, WHEREIN THE BOTTOM SURFACE IS SUBSTANTIALLY FLAT AND ROUGHENED AND THE TOP SURFACE IS A SURFACE OF REVOLUTION OF ELLIPTICAL CROSS-SECTION WHEREIN, IN AREAS IN WHICH A TANGENT DRAWN THERETO MAKES AN ANGLE TO THE GENERAL PERPENDICULAR OF LESS THAN 109*, SAID TOP SURFACE IS FORMED WITH SHALLOW INDENTATIONS IN PATTERNS PROVIDING REFLECTIVE SURFACES, SAID INDENTATIONS BEING IN A WAFFLE PATTERN, SAID MARKER DIVIDED INTO TWO ZONES ALONG A SUBSTANTIALLY HORIZONTAL PLANE, ONE BEING REFLECTIVE AND THE OTHER RETRO-REFLECTIVE, SAID WAFFLE PATTERN FORMED IN THE UPPER ZONE.
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |