US2697380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anamorphoscope
Assignee: Individual
•
Filing: 1950-08-05
•
Granted: 1954-12-21
•
Expires: 1970-08-05
Abstract
No abstract record available.
Inventors
- 👤 Wenyon W Wyser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:19
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/06; G02B13/00; G02B13/08; Y; Y10; Y10S; Y10S40/00; Y10S40/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US243537A
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US697738A
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US888236A
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US1157154A
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DE329523C
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FR704471A
Cited
US1957043A
Cited
US2014527A
Cited
US2126930A
Cited
US2244235A
Cited
GB581650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |