Patent US5886365A successfully refreshed from Google Patents.
Patent US3460115A successfully refreshed from Google Patents.
Patent US3504172A successfully refreshed from Google Patents.
US3504172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture supporting and wiring channels
Assignee: Individual
•
Filing: 1967-06-15
•
Granted: 1970-03-31
•
Expires: 1987-06-15
Abstract
No abstract record available.
Inventors
- 👤 Milton Liberman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:01
CPC Classifications
F; F21; F21S; F21S2/00; E; E04; E04B; E04B9/00; E04B9/006; F21V; F21V21/00; F21V21/02; H; H02; H02G; H02G3/00; H02G3/28; H02G3/281; F21S8/00; F21S8/04; F21S8/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2090239A
Cited
US2678380A
Cited
US2951147A
Cited
US3272978A
Cited
US3377488A
Cited
US3354301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |