US2887085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signalling device
Assignee: Individual
•
Filing: 1957-04-08
•
Granted: 1959-05-19
•
Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Aiken William Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:14
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0967; G08G1/096708; G08G1/096716; G08G1/096733; G08G1/096758; G08G1/096766; G08G1/096783
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308658A
Cited
US1299079A
Cited
US1357273A
Cited
US1379117A
Cited
US2199308A
Cited
US2677205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |