US3403308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum-gold contact to silicon and germanium
Assignee: AT&T Inc
•
Filing: 1966-10-03
•
Granted: 1968-09-24
•
Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Rudolf
- 👤 Jack H Wernick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:10
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/071; H10W72/075; H10W72/50; H10W72/90; H10W72/07531; H10W72/07532; H10W72/531; H10W72/5363; H10W72/551; H10W72/552; H10W72/5522; H10W72/59; H10W72/921; H10W72/926; H10W72/931; H10W72/932; H10W72/951; H10W72/952
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
AN ALUMINUM-GOLD CONTACT TO A SEMICONDUCTOR BODY SELECTED FROM THE GROUP CONSISTING OF SILICON AND GERMANIUM WHICH INCLUDES PHOSPHORUS AT A CONCENTRATION OF BETWEEN ABOUT A FEW PARTS PER MILLION AND ABOUT 0.1 PERCENT.
Claim 2
Dependent Claim
34 words
AN ALUMINUM-GOLD CONTACT TO A SEMICONDUCTOR BODY SELECTED FROM THE GROUP CONSISTING OF SILICON AND GERMANIUM WHICH INCLUDES PHOSPHORUS AT A CONCENTRATION OF BETWEEN ABOUT A FEW PARTS PER MILLION AND ABOUT 0.1 PERCENT.
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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |