US3147734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road markers
Assignee: Tri-Tix Inc
•
Filing: 1963-09-17
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Granted: 1964-09-08
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Expires: 1983-09-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph S Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:45
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/654; E01F9/688
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2928633A
Cited
US3099244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |