Patent US2770336A successfully refreshed from Google Patents.
US2770336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for connecting adjoining units of louvered grid lighting fixtures
Assignee: J A Wilson Lighting & Display
•
Filing: 1950-09-16
•
Granted: 1956-11-13
•
Expires: 1970-09-16
Abstract
No abstract record available.
Inventors
- 👤 James V Vevirit
- 👤 Gingo Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:41
CPC Classifications
F; F21; F21V; F21V11/00; F21V11/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US170733A
Cited
US265448A
Cited
US1854241A
Cited
US1893481A
Cited
US1686106A
Cited
GB385017A
Cited
US2117404A
Cited
US2151221A
Cited
US2192720A
Cited
US2220469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |