US2642561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture
Assignee: ON A LITE CORP
•
Filing: 1949-02-14
•
Granted: 1953-06-16
•
Expires: 1969-02-14
Abstract
No abstract record available.
Inventors
- 👤 Albert L Judson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:35
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1315317A
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US886262A
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US1172704A
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US1542706A
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US1578311A
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US1954756A
Cited
GB455196A
Cited
US2188596A
Cited
US2559706A
Cited
US2465700A
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US2491463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |