US1390067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway-crossing signal
Assignee: Individual
•
Filing: 1916-09-13
•
Granted: 1921-09-06
•
Expires: 1936-09-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Varley
- 👤 William C Nein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:17
CPC Classifications
B; B61; B61L; B61L29/00; B61L29/24; B61L29/28; B61L29/282
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) | 1924-09-05 | 1925-03-07 | 1925-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-09-05 | 1929-03-07 | 1929-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-09-05 | 1933-03-07 | 1933-09-06 | $7700.00 | Window Closed / Lapsed |