US2067443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical network
Assignee: Individual
•
Filing: 1932-05-05
•
Granted: 1937-01-12
•
Expires: 1952-05-05
Abstract
No abstract record available.
Inventors
- 👤 Gewertz Charles M Son
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:54
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/09; H03H7/17; H03H7/1741; H03H7/1766; H03H7/1775
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) | 1940-01-12 | 1940-07-13 | 1941-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-12 | 1944-07-13 | 1945-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-12 | 1948-07-13 | 1949-01-12 | $7700.00 | Window Closed / Lapsed |