US1628862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locomotive headlight
Assignee: Westinghouse Electric Corp
•
Filing: 1923-12-20
•
Granted: 1927-05-17
•
Expires: 1943-12-20
Abstract
No abstract record available.
Inventors
- 👤 John R Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:35
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/0064; B60Q1/007; B61; B61L; B61L15/00; B61L15/02; F; F21; F21S; F21S41/00; F21S41/20; F21S41/29; F21S41/30; F21S41/39
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) | 1930-05-16 | 1930-11-15 | 1931-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-16 | 1934-11-15 | 1935-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-16 | 1938-11-15 | 1939-05-17 | $7700.00 | Window Closed / Lapsed |