US1674650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electric light
Assignee: Bright Star Battery Co
•
Filing: 1926-11-19
•
Granted: 1928-06-26
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Expires: 1946-11-19
Abstract
No abstract record available.
Inventors
- 👤 Leser Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:17
CPC Classifications
F; F21; F21V; F21V14/00; F21V14/02; F21V14/025; F21L; F21L2/00; F21L4/00; F21V19/00; F21V19/02
Claims Analysis
Total Claims: 0
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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) | 1931-06-26 | 1931-12-26 | 1932-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-06-26 | 1935-12-26 | 1936-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-06-26 | 1939-12-26 | 1940-06-26 | $7700.00 | Window Closed / Lapsed |