Patent US2480680A successfully refreshed from Google Patents.
Patent US3091997A successfully refreshed from Google Patents.
US3091997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highway picket and reflective marker
Assignee: Individual
•
Filing: 1960-01-19
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Granted: 1963-06-04
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Expires: 1980-01-19
Abstract
No abstract record available.
Inventors
- 👤 Ray H Byrd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:55
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/631; E01F9/635; E01F9/627; E01F9/629; E01F9/658; E01F9/673; E01F9/681; E01F9/685
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
A HIGHWAY MARKER COMPRISING A BASE PLATE ADAPTED TO SEAT ON A PAVEMENT, MEANS FOR FASTENING SAID BASE PLATE TO SAID PAVEMENT, SAID BASE PLATE HAVING A DOWNWARDLY RECESSED TOP SURFACE AND A PERIPHERAL UPSTANDING RIM, A RESILIENT VERTICALLY EXTENDING MARKER PICKET HAVING A DIAMETRICALLY ENLARGED FOOT PORTION RECEIVED IN SAID RECESSED TOP SURFACE AND WITHIN SAID RIM, A TOP PLATE HAVING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |