US2201795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic traffic signal device
Assignee: Individual
•
Filing: 1938-08-08
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Granted: 1940-05-21
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Expires: 1958-08-08
Abstract
No abstract record available.
Inventors
- 👤 Schnurpfeil Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:51
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/07; G08G1/085; B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/34; B60Q1/40; B60Q1/42; B60Q1/425
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) | 1943-05-21 | 1943-11-20 | 1944-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-05-21 | 1947-11-20 | 1948-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-05-21 | 1951-11-20 | 1952-05-21 | $7700.00 | Window Closed / Lapsed |