US3380155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of contact pads for semiconductors
Assignee: Sprague Electric Co
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Filing: 1965-05-12
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Granted: 1968-04-30
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Expires: 1985-05-12
Abstract
No abstract record available.
Inventors
- 👤 Darnall P Burks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:59
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/20; H10W74/00; H10W74/01; H10W74/012; H10W74/10; H10W74/15; H10W72/01; H10W72/012; H10W72/01221; H10W72/01225; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236; H10W72/251; H10W72/252; H10W72/50; H10W72/551; H10W72/552; H10W72/5522; H10W72/851; H10W72/853; H10W72/856
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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |