US3263578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highway dividing line changing system
Assignee: Individual
•
Filing: 1964-04-29
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Granted: 1966-08-02
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Walter R Pilcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:40
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/576; E01F9/594
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
35 words
A HIGHWAY DIVIDING LINE CHANGING SYSTEM COMPRISING A PLURALITY OF LONGITUDINALLY ALIGNED PLATES PIVOTALLY SECURED ADJACENT ONE SIDE EDGE UPON A ROADWAY SURFACE, SAID PLATES HAVING OPPOSITE HORIZONTAL FACES OF RESPECTIVELY LIGHT AND DARK COLORS.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |