US2406028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit maker and breaker
Assignee: AT&T Inc
•
Filing: 1944-11-01
•
Granted: 1946-08-20
•
Expires: 1964-11-01
Abstract
No abstract record available.
Inventors
- 👤 Myers Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:54
CPC Classifications
H; H01; H01H; H01H67/00; H01H67/02; Y; Y10; Y10S; Y10S200/00; Y10S200/29; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312; Y10T74/18568; Y10T74/18576; Y10T74/18696; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19744; Y10T74/19749; Y10T74/19767; Y10T74/19772; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-08-19 | 1950-02-18 | 1950-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-08-19 | 1954-02-18 | 1954-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-08-19 | 1958-02-18 | 1958-08-20 | $7700.00 | Window Closed / Lapsed |