US2698177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror illusion type advertising display device
Assignee: THOMAS PATRICK MCGREVEY
•
Filing: 1951-06-16
•
Granted: 1954-12-28
•
Expires: 1971-06-16
Abstract
No abstract record available.
Inventors
- 👤 Leo N Engman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:52
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/12; Y; Y10; Y10S; Y10S40/00; Y10S40/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US888569A
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US1680855A
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US1612100A
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DE581389C
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US2042268A
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US2118131A
Cited
US2132473A
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US2132472A
Cited
US2163562A
Cited
US2483901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |