US2623160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct lighting luminaire and/or refractor for use therein
Assignee: Holophane Corp
•
Filing: 1949-04-23
•
Granted: 1952-12-23
•
Expires: 1969-04-23
Abstract
No abstract record available.
Inventors
- 👤 Robert G Mcphail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:37
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/0091; F21S; F21S8/00; F21S8/02; F21V5/00; F21V5/02; F21Y; F21Y2103/00; F21Y2113/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE460989C
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US2474317A
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US1674165A
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US2232276A
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US2269554A
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US2280160A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |