US1505325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety-zone indicator for streets
Assignee: GEORGE L STEWART
•
Filing: 1923-09-13
•
Granted: 1924-08-19
•
Expires: 1943-09-13
Abstract
No abstract record available.
Inventors
- 👤 John D Elbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:01
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40; E; E01; E01F; E01F9/00; E01F9/60; E01F9/604; E01F9/615; H01F38/00; H01F38/14; Y; Y10; Y10S; Y10S362/00; Y10S362/812; Y10S40/00; Y10S40/902
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) | 1927-08-19 | 1928-02-18 | 1928-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-08-19 | 1932-02-18 | 1932-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-08-19 | 1936-02-18 | 1936-08-19 | $7700.00 | Window Closed / Lapsed |