Patent US634499A successfully refreshed from Google Patents.
US634499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charging device for heating-furnaces.
Assignee: Individual
•
Filing: 1899-04-10
•
Granted: 1899-10-10
•
Expires: 1919-04-10
Abstract
No abstract record available.
Inventors
- 👤 James Hundley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:50
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/002; F; F23; F23K; F23K3/00
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) | 1902-10-10 | 1903-04-11 | 1903-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-10-10 | 1907-04-11 | 1907-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-10-10 | 1911-04-11 | 1911-10-11 | $7700.00 | Window Closed / Lapsed |