Patent US5746755A successfully refreshed from Google Patents.
Patent US3542556A successfully refreshed from Google Patents.
US3542556A
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US
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Photosensitive lenticulated film with separable multi-element lens overlay
Assignee: Chrom-Tronics Inc
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Filing: 1967-06-27
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Granted: 1970-11-24
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Expires: 1987-06-27
Abstract
No abstract record available.
Inventors
- 👤 Harry S Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:00
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/18; G03B35/24; Y; Y10; Y10S; Y10S430/00; Y10S430/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB274837A
Cited
US1707157A
Cited
US2158174A
Cited
US2981941A
Cited
US3099195A
Cited
US3213753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |