US2056511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric light guard
Assignee: Individual
•
Filing: 1934-10-01
•
Granted: 1936-10-06
•
Expires: 1954-10-01
Abstract
No abstract record available.
Inventors
- 👤 Rudolph A Fenzl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:54
CPC Classifications
F; F21; F21V; F21V27/00; F21V27/02; F21V15/00; F21V15/02; F21V17/00; F21V17/06; F21V17/10; F21V17/12; F21V25/00; F21V25/12; F21V31/00; F21W; F21W2131/00; F21W2131/40; F21W2131/411
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) | 1939-10-06 | 1940-04-06 | 1940-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-06 | 1944-04-06 | 1944-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-06 | 1948-04-06 | 1948-10-06 | $7700.00 | Window Closed / Lapsed |