Patent US2524435A successfully refreshed from Google Patents.
US2524435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple head electric lantern
Assignee: Individual
•
Filing: 1946-04-01
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Granted: 1950-10-03
•
Expires: 1966-04-01
Abstract
No abstract record available.
Inventors
- 👤 Harry F Emigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:12
CPC Classifications
F; F21; F21L; F21L4/00; F21L2/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190918864A
Cited
US1256522A
Cited
US1414415A
Cited
US1592915A
Cited
US1530206A
Cited
US1985582A
Cited
US2053591A
Cited
US2145631A
Cited
US2369637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |