US3368070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular closed louver panel system
Assignee: United Lighting and Ceiling Co
•
Filing: 1965-06-15
•
Granted: 1968-02-06
•
Expires: 1985-06-15
Abstract
No abstract record available.
Inventors
- 👤 Robert A D Schwartz
- 👤 Philip W Pfeiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:08
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/32; E04B9/18; E04B9/20; E04C; E04C2/00; E04C2/30; E04C2/32; E04C2/326; F; F21; F21V; F21V11/00; F21V17/00; F21V17/10; F21V17/16; F21V17/164; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2860237A
Cited
US2937265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |