Patent US1392174A successfully refreshed from Google Patents.
US1392174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
House electric
Assignee: —
•
Filing: —
•
Granted: 1921-09-27
•
Expires: 1938-09-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:11
CPC Classifications
—
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) | 1924-09-26 | 1925-03-28 | 1925-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-09-26 | 1929-03-28 | 1929-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-09-26 | 1933-03-28 | 1933-09-27 | $7700.00 | Window Closed / Lapsed |