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US2468046A
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Apparatus for projecting and viewing images with depth effect
Assignee: EUGENIO DE ANZORENA
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Filing: 1947-10-16
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Granted: 1949-04-26
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Expires: 1967-10-16
Abstract
No abstract record available.
Inventors
- 👤 Monteros Antonio Espinosa Los
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:59
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR392134A
Cited
GB191300971A
Cited
FR506097A
Cited
GB183441A
Cited
FR705892A
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DE656759C
Cited
AU593132A
Cited
US2252467A
Cited
US2184641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |