US2967225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heater
Assignee: Farnam Manuf Co Inc
•
Filing: 1959-05-19
•
Granted: 1961-01-03
•
Expires: 1979-05-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph A Carrier
- 👤 Franklin C Farnam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:58
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1693618A
Cited
US1716459A
Cited
US1731472A
Cited
US1823993A
Cited
US2432400A
Cited
US2870277A
Cited
US2892065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |