US2233280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture illuminating device
Assignee: Individual
•
Filing: 1938-12-17
•
Granted: 1941-02-25
•
Expires: 1958-12-17
Abstract
No abstract record available.
Inventors
- 👤 Matthew R Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:37
CPC Classifications
F; F21; F21V; F21V11/00; F21V11/16; F21V11/18; F21S; F21S4/00; F21S4/20; F21S8/00; F21V14/00; F21V14/08; F21V15/00; F21V15/01; F21V19/00; F21V19/02; F21V9/00; F21V9/40; F21W; F21W2131/00; F21W2131/30; F21W2131/304; 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)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-02-25 | 1944-08-26 | 1945-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-25 | 1948-08-26 | 1949-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-25 | 1952-08-26 | 1953-02-25 | $7700.00 | Window Closed / Lapsed |