Patent US2687867A successfully refreshed from Google Patents.
US2687867A
Expired / Lapsed
US
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Hanger for stem-type lighting fixtures
Assignee: Individual
•
Filing: 1951-10-08
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Granted: 1954-08-31
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Expires: 1971-10-08
Abstract
No abstract record available.
Inventors
- 👤 Wolar Isidore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:20
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/02; F21V21/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US913977A
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US1041458A
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US2288706A
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US2321640A
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US2525582A
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US2507308A
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US2448001A
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US2545564A
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US2516661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |