Patent US2426185A successfully refreshed from Google Patents.
US2426185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Translation of microwaves
Assignee: AT&T Inc
•
Filing: 1941-09-27
•
Granted: 1947-08-26
•
Expires: 1961-09-27
Abstract
No abstract record available.
Inventors
- 👤 William H Doherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:38
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/14; H01J; H01J19/00; H01J19/78; H01J19/80; H03; H03B; H03B5/00; H03B5/18; H03B5/1817; H03B5/1835; H03F; H03F1/00; H03F1/08; H03F1/14; H03F1/16; H03F3/00; H03F3/50; H03F3/52; H03F3/54
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) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |