US1372207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switch
Assignee: Connecticut Telephone & Elec
•
Filing: 1919-09-06
•
Granted: 1921-03-22
•
Expires: 1939-09-06
Abstract
No abstract record available.
Inventors
- 👤 Charles E Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:10
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/22; H01H73/30
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) | 1924-03-21 | 1924-09-20 | 1925-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-03-21 | 1928-09-20 | 1929-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-03-21 | 1932-09-20 | 1933-03-22 | $7700.00 | Window Closed / Lapsed |