US3277800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic marker
Assignee: Botts Line Inc
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Filing: 1965-01-12
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Granted: 1966-10-11
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Expires: 1985-01-12
Abstract
No abstract record available.
Inventors
- 👤 Grant A Wiswell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:22
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/553
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A TRAFFIC MARKER FORMED OF A UNITARY PIECE OF TOUGH, HARD PLASTIC AND HAVING IMBEDDED AND DISPERSED THEREIN THROUGHOUT AT LEAST A DEFINED PORTION OF SAID MARKER A MIXTURE OF RETRO-REFLECTIVE GLASS SPHERES CONSISTING SUBSTANTIALLY ENTIRELY OF TWO DIFFERENT SIZE RANGES, A FIRST SAID RANGE BEING 700 TO 1,000 MICRONS DIAMETER AND A SECOND SAID RANGE BEING 20 TO 50 MICRONS DIAMETER, THE FIRST RANGE SPHERES BEING EXPOSED AT THE SURFACE OF THE MARKER AND STANDING OUT FROM THE SURROUNDING MATRIX, CONSISTING OF A MIXTURE OF FIRST AND SECOND RANGE SPHERES, THE MIXTURE OF SAID RANGES BEING SUBSTANTIALLY CONSTANT THROUGHOUT SAID DEFINED PORTION OF SAID MARKER.
Claim 2
Dependent Claim
106 words
A TRAFFIC MARKER FORMED OF A UNITARY PIECE OF TOUGH, HARD PLASTIC AND HAVING IMBEDDED AND DISPERSED THEREIN THROUGHOUT AT LEAST A DEFINED PORTION OF SAID MARKER A MIXTURE OF RETRO-REFLECTIVE GLASS SPHERES CONSISTING SUBSTANTIALLY ENTIRELY OF TWO DIFFERENT SIZE RANGES, A FIRST SAID RANGE BEING 700 TO 1,000 MICRONS DIAMETER AND A SECOND SAID RANGE BEING 20 TO 50 MICRONS DIAMETER, THE FIRST RANGE SPHERES BEING EXPOSED AT THE SURFACE OF THE MARKER AND STANDING OUT FROM THE SURROUNDING MATRIX, CONSISTING OF A MIXTURE OF FIRST AND SECOND RANGE SPHERES, THE MIXTURE OF SAID RANGES BEING SUBSTANTIALLY CONSTANT THROUGHOUT SAID DEFINED PORTION OF SAID MARKER.
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |