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US3468603A
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Automatic slide projector having dual optical system with a single magazine
Assignee: Meopta np
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Filing: 1967-05-31
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Granted: 1969-09-23
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Expires: 1987-05-31
Abstract
No abstract record available.
Inventors
- 👤 Alois Kovarik
- 👤 Jindrich Suchanek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:57
CPC Classifications
G; G03; G03B; G03B23/00; G03B21/00; G03B21/001; G03B21/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3093030A
Cited
US3161109A
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US3174395A
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US3171222A
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US3194115A
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US3369452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |