Patent US473800A successfully refreshed from Google Patents.
US473800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wilhelm johann van broek
Assignee: —
•
Filing: —
•
Granted: 1892-04-26
•
Expires: 1909-04-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:38
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/001; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0843; Y10T70/00; Y10T70/70; Y10T70/7153; Y10T70/7181; Y10T70/7198; Y10T70/7237; Y10T70/726; Y10T70/7266; Y10T70/735; Y10T70/7401
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) | 1895-04-26 | 1895-10-26 | 1896-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1899-04-26 | 1899-10-26 | 1900-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1903-04-27 | 1903-10-27 | 1904-04-27 | $7700.00 | Window Closed / Lapsed |