US2534875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trouble light construction
Assignee: Individual
•
Filing: 1945-12-29
•
Granted: 1950-12-19
•
Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Miller Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:46
CPC Classifications
F; F21; F21L; F21L14/00; F21L14/02; F21V; F21V21/00; F21V21/40; F21V21/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1546148A
Cited
US1818614A
Cited
US1882791A
Cited
US1926239A
Cited
US2032780A
Cited
US2119146A
Cited
US2077801A
Cited
US2213649A
Cited
US2210215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |