Patent US2672528A successfully refreshed from Google Patents.
US2672528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor translating device
Assignee: AT&T Inc
•
Filing: 1949-05-28
•
Granted: 1954-03-16
•
Expires: 1969-05-28
Abstract
No abstract record available.
Inventors
- 👤 Shockley William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:22
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D10/00; H10D99/00; H10P; H10P34/00; Y; Y10; Y10S; Y10S148/00; Y10S148/054; Y10S438/00; Y10S438/965
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |