US2467348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heater
Assignee: Tuttie & Kift Inc
•
Filing: 1942-09-03
•
Granted: 1949-04-12
•
Expires: 1962-09-03
Abstract
No abstract record available.
Inventors
- 👤 William R Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:35
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22177E
Cited
US1708258A
Cited
US1749173A
Cited
US1680402A
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US1998330A
Cited
US2028604A
Cited
US2262507A
Cited
US2320041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |