US2595331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination vision mirror and signaling device
Assignee: Individual
•
Filing: 1950-01-30
•
Granted: 1952-05-06
•
Expires: 1970-01-30
Abstract
No abstract record available.
Inventors
- 👤 Paul F Calihan
- 👤 Sheldon A Mortenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:13
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2661; B60Q1/2665; B60Q1/34; B60R; B60R1/00; B60R1/12; B60R1/1207; Y; Y10; Y10S; Y10S248/00; Y10S248/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |