Patent US2590600A successfully refreshed from Google Patents.
US2590600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric room heater
Assignee: Meritor Inc
•
Filing: 1948-07-02
•
Granted: 1952-03-25
•
Expires: 1968-07-02
Abstract
No abstract record available.
Inventors
- 👤 Edward A Farr
- 👤 John P Theisen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:20
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405; F24H3/0411; F24H3/0417
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US799377A
Cited
US1064358A
Cited
US1481156A
Cited
US2008163A
Cited
US1956067A
Cited
US2020364A
Cited
US2020538A
Cited
US2061258A
Cited
US2190276A
Cited
US2248666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |