US840857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heater.
Assignee: J EARL MOORE
•
Filing: 1906-01-25
•
Granted: 1907-01-08
•
Expires: 1926-01-25
Abstract
No abstract record available.
Inventors
- 👤 Nicholas N S Matcovitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:50
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1910-01-07 | 1910-07-09 | 1911-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-01-07 | 1914-07-09 | 1915-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-01-07 | 1918-07-09 | 1919-01-08 | $7700.00 | Window Closed / Lapsed |