US3239376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes to semiconductor wafers
Assignee: AT&T Inc
•
Filing: 1962-06-29
•
Granted: 1966-03-08
•
Expires: 1982-06-29
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:10
CPC Classifications
H; H10; H10P; H10P95/00; H10D; H10D62/00; H10D62/10; H10D62/117; H10W; H10W72/00; H10W72/071; H10W72/075; H10W72/50; H10W72/531; H10W72/5363; H10W72/551; H10W72/552; H10W72/5522; H10W72/5524; H10W72/59; H10W72/851; H10W72/874; H10W72/884; H10W72/90; H10W72/931; H10W72/934; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2877147A
Cited
US2861230A
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US2906932A
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US2861018A
Cited
US2878432A
Cited
US2992947A
Cited
US2959505A
Cited
US2995473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |