US1040940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of railway signaling.
Assignee: AMERICAN RAILWAY SIGNAL Co
•
Filing: 1911-05-10
•
Granted: 1912-10-08
•
Expires: 1931-05-10
Abstract
No abstract record available.
Inventors
- 👤 William Grunow Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:36
CPC Classifications
B; B61; B61L; B61L21/00; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1915-10-08 | 1916-04-08 | 1916-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-10-08 | 1920-04-08 | 1920-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-10-08 | 1924-04-08 | 1924-10-08 | $7700.00 | Window Closed / Lapsed |