US2756326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct lighting luminaires
Assignee: Holophane Corp
•
Filing: 1952-02-01
•
Granted: 1956-07-24
•
Expires: 1972-02-01
Abstract
No abstract record available.
Inventors
- 👤 Franck Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:17
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/02; F21V; F21V13/00; F21V13/02; F21V13/04; F21V5/00; F21V5/02; F21V7/00; F21V7/0091; F21V17/00; F21V17/10; F21V17/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2082100A
Cited
US2101199A
Cited
US2099034A
Cited
US2158653A
Cited
US2192019A
Cited
GB644109A
Cited
US2602135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |