US2596634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct lighting fixture
Assignee: Holophane Corp
•
Filing: 1951-01-25
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Granted: 1952-05-13
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Expires: 1971-01-25
Abstract
No abstract record available.
Inventors
- 👤 Vearl S Wince
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:36
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; F21Y; F21Y2103/00; F21Y2113/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |