Patent US2583244A successfully refreshed from Google Patents.
US2583244A
Expired / Lapsed
US
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Illuminated road barricade
Assignee: Individual
•
Filing: 1948-04-21
•
Granted: 1952-01-22
•
Expires: 1968-04-21
Abstract
No abstract record available.
Inventors
- 👤 Wilford H Underwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:46
CPC Classifications
E; E01; E01F; E01F13/00; E01F13/02; Y; Y10; Y10S; Y10S362/00; Y10S362/812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US232521A
Cited
US351990A
Cited
US414342A
Cited
US1002641A
Cited
US1095739A
Cited
US1794434A
Cited
US1813905A
Cited
FR798792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |