Patent US2525850A successfully refreshed from Google Patents.
US2525850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heater of the panel or bottom molding type
Assignee: Individual
•
Filing: 1947-03-14
•
Granted: 1950-10-17
•
Expires: 1967-03-14
Abstract
No abstract record available.
Inventors
- 👤 Andersen Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:08
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/04; F24C7/043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1617916A
Cited
US1664171A
Cited
US1705769A
Cited
US1867740A
Cited
US1913002A
Cited
US2269578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |