US2600500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor signal translating device with controlled carrier transit times
Assignee: AT&T Inc
•
Filing: 1948-09-24
•
Granted: 1952-06-17
•
Expires: 1968-09-24
Abstract
No abstract record available.
Inventors
- 👤 James R Haynes
- 👤 Shockley William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:54
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/04; H03F3/14; H03D; H03D7/00; H03D7/12; H10; H10D; H10D99/00
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) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |