Patent US3556636A successfully refreshed from Google Patents.
US3556636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collimated hole structure with mask for producing high resolution images
Assignee: Brunswick Corp
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Filing: 1968-01-30
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Granted: 1971-01-19
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Expires: 1988-01-30
Abstract
Abstract A METHOD OF PRODUCING HIGH RESOLUTION IMAGES FORMED OF A PLURALITY OF SMALL IMAGES PRODUCED BY PASSING RADIATION THROUGH A COLLIMATED HOLE STRUCTURE HAVING SUBSTANTIALLY RECTILINEAR SMALL CROSS SECTION PASSAGES. THE COLLIMATED HOLE STRUCTURE IS PROVIDED WITH A HIGH ASPECT RATIO OF PASSAGE LENGTH TO PASSAGE CROSS SECTION TO PROVIDE A HIGH RESOLUTION IN THE INDIVIDUAL IMAGES PRODUCED THEREBY. A MASK MAY BE FORMED ON ONE SURFACE OF THE COLLIMATED HOLE STRUCTURE HAVING AN OPENING EXPOSING PRESELECTED ONES OF THE COLLIMATED HOLE STRUCTURE PASSAGES FOR PRODUCING A COMPOSITE IMAGE DEFINING A PRESELECTED PATTERN CORRESPONDING TO THE OPENING.
Inventors
- 👤 John A Roberts
- 👤 Alwyn H King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:30
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/20; G02; G02B; G02B5/00; G02B5/005; H; H05; H05K; H05K3/00; H05K3/0002; H10; H10N; H10N97/00; H05K2203/00; H05K2203/05; H05K2203/0548; H05K2203/056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |