US2819375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space heater
Assignee: Individual
•
Filing: 1954-10-27
•
Granted: 1958-01-07
•
Expires: 1974-10-27
Abstract
No abstract record available.
Inventors
- 👤 Bert T Mohn
- 👤 Vincent J Long
- 👤 Wilfred M Plante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:40
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1417427A
Cited
CH101560A
Cited
US1620767A
Cited
US1926473A
Cited
US2174079A
Cited
US2528774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |