Patent US2931893A successfully refreshed from Google Patents.
US2931893A
Expired / Lapsed
US
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Lighting arrangement
Assignee: Individual
•
Filing: 1958-02-21
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Granted: 1960-04-05
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Expires: 1978-02-21
Abstract
No abstract record available.
Inventors
- 👤 Arias Benigno Gonzalez
- 👤 Quijano Roberto Mendoza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:24
CPC Classifications
F; F21; F21V; F21V33/00; A; A43; A43B; A43B1/00; A43B1/0027; A43B1/0036; A43B3/00; A43B3/12; A43B3/34; A43B3/36; F21L; F21L2/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |