US929598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melting-cupola for metal.
Assignee: Individual
•
Filing: 1905-11-10
•
Granted: 1909-07-27
•
Expires: 1925-11-10
Abstract
No abstract record available.
Inventors
- 👤 William J Keep
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:15
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/38; C21C5/40; Y; Y10; Y10S; Y10S266/00; Y10S266/90
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) | 1912-07-26 | 1913-01-25 | 1913-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-07-26 | 1917-01-25 | 1917-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-07-26 | 1921-01-25 | 1921-07-27 | $7700.00 | Window Closed / Lapsed |