US2500899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animated display device
Assignee: Individual
•
Filing: 1946-06-28
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Granted: 1950-03-14
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Expires: 1966-06-28
Abstract
No abstract record available.
Inventors
- 👤 Frank E Leahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:45
CPC Classifications
A; A47; A47G; A47G33/00; A47G33/04; A47G33/08; A47G33/0809; F; F21; F21V; F21V1/00; F21V1/10; G; G09; G09F; G09F19/00; G09F19/02; G09F19/08; A47G2033/0827; F21W; F21W2121/00; F21W2121/04; Y; Y10; Y10S; Y10S362/00; Y10S362/806
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |