US2449911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable display device with triangular base
Assignee: COMMANDAY ROTH CO Inc
•
Filing: 1947-06-14
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Granted: 1948-09-21
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Expires: 1967-06-14
Abstract
No abstract record available.
Inventors
- 👤 Louis H Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:18
CPC Classifications
G; G09; G09F; G09F1/00; G09F1/10; G09F1/14; A; A47; A47G; A47G1/00; A47G1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2142826A
Cited
US2311218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |