Patent US3547730A successfully refreshed from Google Patents.
US3547730A
Expired / Lapsed
US
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Machine for making resist images
Assignee: EIDP Inc
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Filing: 1966-12-16
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Granted: 1970-12-15
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Expires: 1986-12-16
Abstract
No abstract record available.
Inventors
- 👤 Abraham Bernard Cohen
- 👤 Robert Bernard Heiart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:41
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/14; B32B37/16; B32B37/22; B32B37/223; B32B37/226; G; G03; G03F; G03F7/00; G03F7/16; G03F7/161; B32B2457/00; B32B2457/08; H; H05; H05K; H05K3/00; H05K3/0073; H05K3/0079; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1705; Y10T156/1707; Y10T156/171
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |