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US1465293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamp
Assignee: Individual
•
Filing: 1919-12-10
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Granted: 1923-08-21
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Expires: 1939-12-10
Abstract
No abstract record available.
Inventors
- 👤 Alber Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:23
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/02; F21L; F21L2/00; F21L4/00
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) | 1926-08-20 | 1927-02-19 | 1927-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-08-20 | 1931-02-19 | 1931-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-08-20 | 1935-02-19 | 1935-08-21 | $7700.00 | Window Closed / Lapsed |