Patent US4715373A successfully refreshed from Google Patents.
US2564046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quickly detachable mounting means for suspended lighting-fixture accessory
Assignee: PITTSBURGH REFIECTOR Co
•
Filing: 1947-07-22
•
Granted: 1951-08-14
•
Expires: 1967-07-22
Abstract
No abstract record available.
Inventors
- 👤 Eric D Altree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:28
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21V17/12; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE333954C
Cited
US2268713A
Cited
GB545358A
Cited
US2283782A
Cited
US2365614A
Cited
US2431656A
Cited
US2427084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |