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US700808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric furnace.
Assignee: Individual
•
Filing: 1901-07-22
•
Granted: 1902-05-27
•
Expires: 1921-07-22
Abstract
No abstract record available.
Inventors
- 👤 William R Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:28
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/52; C21C5/5211; C21C5/5217
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) | 1905-05-26 | 1905-11-25 | 1906-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-05-26 | 1909-11-25 | 1910-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-05-26 | 1913-11-25 | 1914-05-27 | $7700.00 | Window Closed / Lapsed |