US1572214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road-surface signal lamp
Assignee: Individual
•
Filing: 1924-01-21
•
Granted: 1926-02-09
•
Expires: 1944-01-21
Abstract
No abstract record available.
Inventors
- 👤 Luther B Mcewing
- 👤 George S Clayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:33
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/02; F21S8/022; E; E01; E01F; E01F9/00; E01F9/50; E01F9/553; E01F9/559; F21W; F21W2111/00; F21W2111/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-02-08 | 1929-08-10 | 1930-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-08 | 1933-08-10 | 1934-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-08 | 1937-08-10 | 1938-02-09 | $7700.00 | Window Closed / Lapsed |