US2448244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated display device
Assignee: Individual
•
Filing: 1942-09-22
•
Granted: 1948-08-31
•
Expires: 1962-09-22
Abstract
No abstract record available.
Inventors
- 👤 Orlan M Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:38
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/06; Y; Y10; Y10S; Y10S362/00; Y10S362/812; Y10S385/00; Y10S385/901
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |