Patent US2615121A successfully refreshed from Google Patents.
US2615121A
Expired / Lapsed
US
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Illuminating system for paintings and the like
Assignee: Individual
•
Filing: 1949-05-12
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Granted: 1952-10-21
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Expires: 1969-05-12
Abstract
No abstract record available.
Inventors
- 👤 Cox Warren Earle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:02
CPC Classifications
F; F21; F21V; F21V33/00; F21S; F21S8/00; F21W; F21W2131/00; F21W2131/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US973962A
Cited
US1614837A
Cited
FR631319A
Cited
US1871794A
Cited
US1880026A
Cited
US2207919A
Cited
US2224686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |