Patent US2454243A successfully refreshed from Google Patents.
US2454243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixture
Assignee: Individual
•
Filing: 1945-09-07
•
Granted: 1948-11-16
•
Expires: 1965-09-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Wiedenhoeft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:10
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/33; F21Y2113/00; F21Y2113/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US900733A
Cited
US1084362A
Cited
US1245177A
Cited
US1604830A
Cited
US2309676A
Cited
US2313131A
Cited
US2392785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |