Patent US2591571A successfully refreshed from Google Patents.
US2591571A
Expired / Lapsed
US
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Electric lamp with ball switch
Assignee: Individual
•
Filing: 1947-08-07
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Granted: 1952-04-01
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Expires: 1967-08-07
Abstract
No abstract record available.
Inventors
- 👤 Marino Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:22
CPC Classifications
F; F21; F21V; F21V33/00; F21V33/0004; F21V33/0048; F21V23/00; F21V23/04; F21V23/0442; F21V23/0492; F21V21/00; F21V21/08; F21V21/088; F21V21/14; F21V21/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL52534C
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US1341267A
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GB271148A
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US2107570A
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US2251315A
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US2228456A
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US2336677A
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US2320683A
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US2303834A
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US2382646A
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US2377538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |