USRE24372E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct lighting luminaires
Assignee: —
•
Filing: —
•
Granted: 1957-10-08
•
Expires: 1974-10-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:45
CPC Classifications
F; F21; F21V; F21V13/00; F21V13/02; F21V13/04; F21S; F21S8/00; F21S8/02; 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)
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) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |