Patent US3533690A successfully refreshed from Google Patents.
US3533690A
Expired / Lapsed
US
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Photographic reproduction of pseudoscopic real image generator plates
Assignee: Individual
•
Filing: 1967-07-14
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Granted: 1970-10-13
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Expires: 1987-07-14
Abstract
No abstract record available.
Inventors
- 👤 Roger Lannes De Montebello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:19
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/22; G03B; G03B35/00; G03B35/18; G03B35/24; G03C; G03C9/00; G03H1/2202; G03H1/2205; G03H2001/221; G03H2001/2223; G03H2001/2234; G03H2001/2244; G03H1/2249; G03H2001/2278; G03H2223/00; G03H2223/19; G03H2227/00; G03H2227/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3300266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |