Patent US2422492A successfully refreshed from Google Patents.
US2422492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Displacement-type electric water heater
Assignee: LOSEE PRODUCTS CO
•
Filing: 1944-12-15
•
Granted: 1947-06-17
•
Expires: 1964-12-15
Abstract
No abstract record available.
Inventors
- 👤 Eugene W Losee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:52
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/18; F24H1/185
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1157111A
Cited
US1444262A
Cited
US1442048A
Cited
US2012101A
Cited
US2056941A
Cited
US2146022A
Cited
US2269448A
Cited
US2248007A
Cited
US2299053A
Cited
US2356784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-16 | 1950-12-16 | 1951-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-16 | 1954-12-16 | 1955-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-16 | 1958-12-16 | 1959-06-17 | $7700.00 | Window Closed / Lapsed |