US3532564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for diffusion of antimony into a semiconductor
Assignee: AT&T Inc
•
Filing: 1968-05-31
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Granted: 1970-10-06
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Expires: 1988-05-31
Abstract
No abstract record available.
Inventors
- 👤 Frank L Gittler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:56
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/002; B60R25/003; B60R25/007; C; C09; C09J; C09J7/00; C09J7/20; H; H10; H10P; H10P32/00; H10P32/10; H10P32/14; H10P32/1408; H10P32/141; H10P32/17; H10P32/171; H10W; H10W74/00; H10W74/40; H10W74/43; Y; Y10; Y10S; Y10S148/00; Y10S148/043; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/14; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5642; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20468
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3215570A
Cited
US3437533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |