Patent US2485429A successfully refreshed from Google Patents.
US2485429A
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US
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Electric lamp
Assignee: Briggs Manufacturing Co
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Filing: 1946-01-11
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Granted: 1949-10-18
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Expires: 1966-01-11
Abstract
No abstract record available.
Inventors
- 👤 Alonzo H Burchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:11
CPC Classifications
F; F21; F21V; F21V23/00; F21L; F21L14/00; F21V23/04; Y; Y10; Y10S; Y10S362/00; Y10S362/802
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1170012A
Cited
US1208682A
Cited
FR20620E
Cited
GB130481A
Cited
US1611772A
Cited
US1877077A
Cited
US2220232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |