Patent US2595520A successfully refreshed from Google Patents.
US2595520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosed fluorescent lighting device
Assignee: Individual
•
Filing: 1947-03-26
•
Granted: 1952-05-06
•
Expires: 1967-03-26
Abstract
No abstract record available.
Inventors
- 👤 John J Guerin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:40
CPC Classifications
F; F21; F21V; F21V25/00; F21V25/12; B; B66; B66F; B66F7/00; B66F7/28; F21V17/00; F21V33/00; 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)
US1034077A
Cited
US1997687A
Cited
US2098419A
Cited
US2223470A
Cited
US2239343A
Cited
US2269182A
Cited
US2334005A
Cited
US2323002A
Cited
US2421967A
Cited
US2400223A
Cited
US2391325A
Cited
US2407629A
Cited
US2434781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |