US2770336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for connecting adjoining units of louvered grid lighting fixtures
Assignee: J A Wilson Lighting & Display
•
Filing: 1950-09-16
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Granted: 1956-11-13
•
Expires: 1970-09-16
Abstract
No abstract record available.
Inventors
- 👤 James V Vevirit
- 👤 Gingo Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:55
CPC Classifications
F; F21; F21V; F21V11/00; F21V11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US170733A
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US265448A
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US1854241A
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US1893481A
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US1686106A
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GB385017A
Cited
US2117404A
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US2151221A
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US2192720A
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US2220469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |