US2974875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road striping machine with optical sight
Assignee: Wald Indusries Inc
•
Filing: 1959-03-06
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Granted: 1961-03-14
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Expires: 1979-03-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl F Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:27
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/16; E01C23/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB535189A
Cited
US2379167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |