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Patent US3611899A successfully refreshed from Google Patents.
US3611899A
Expired / Lapsed
US
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Multiphotographic device
Assignee: Ricoh Co Ltd
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Filing: 1968-11-04
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Granted: 1971-10-12
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Expires: 1988-11-04
Abstract
Abstract A multiphotographic device comprising a photographic lens consisting of a group of a multitude of microlenses arrayed integrally in one plane in columns and rows; and an opaque moving plate disposed between the photographic lens and a photosensitive material which is disposed backwardly of the moving plate, and having a plurality of equidistantly spaced apart apertures.
Inventors
- 👤 Hisanori Ataka
- 👤 Nobunao Mikami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:31
CPC Classifications
G; G03; G03B; G03B19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3291555A
Cited
FR633689A
Cited
US1780191A
Cited
US1875244A
Cited
GB421120A
Cited
US2661651A
Cited
US2943533A
Cited
US3099195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |