Patent US2434951A successfully refreshed from Google Patents.
US2434951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting equipment
Assignee: Individual
•
Filing: 1942-04-08
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Granted: 1948-01-27
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Expires: 1962-04-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Netting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:10
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/005; F21V19/00; F21V19/0075; F21V19/008; H; H01; H01J; H01J5/00; H01J5/48; H01J5/50; H01J5/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1877932A
Cited
US2135732A
Cited
GB469485A
Cited
US2170066A
Cited
US2262586A
Cited
US2274612A
Cited
GB541144A
Cited
US2288606A
Cited
US2273960A
Cited
US2278079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |