Patent US3535157A successfully refreshed from Google Patents.
US3535157A
Expired / Lapsed
US
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Method of coating printed circuit board having through-holes
Assignee: Shipley Co Inc
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Filing: 1967-12-18
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Granted: 1970-10-20
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Expires: 1987-12-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Steinhoff
- 👤 Calvin Isaacson
- 👤 Gerald J Roelants
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:13
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/28; G; G03; G03C; G03C1/00; G03C1/74; G03F; G03F7/00; G03F7/16; H; H05; H05K; H05K3/00; H05K3/0091; H05K2203/00; H05K2203/01; H05K2203/0104; H05K2203/0143; H05K2203/15; H05K2203/1509; H05K2203/1572; Y; Y10; Y10S; Y10S430/00; Y10S430/136
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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |