US960862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric furnace.
Assignee: Individual
•
Filing: 1909-07-15
•
Granted: 1910-06-07
•
Expires: 1929-07-15
Abstract
No abstract record available.
Inventors
- 👤 John W Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:52
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/52; C21C5/5211; C21C5/5217
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1913-06-06 | 1913-12-06 | 1914-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-06-06 | 1917-12-06 | 1918-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-06-06 | 1921-12-06 | 1922-06-07 | $7700.00 | Window Closed / Lapsed |