US3423262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophoretic treatment of photoresist for microcircuity
Assignee: Westinghouse Electric Corp
•
Filing: 1964-11-23
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Granted: 1969-01-21
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Irving F Barditch
- 👤 Charles J Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:24
CPC Classifications
H; H10; H10P; H10P95/00; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/16; H10W; H10W74/00; H10W74/40; H10W74/47; Y; Y10; Y10S; Y10S438/00; Y10S438/942; Y10S438/948
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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |