US581235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Island
Assignee: —
•
Filing: —
•
Granted: 1897-04-20
•
Expires: 1914-04-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:44
CPC Classifications
B; B29; B29C; B29C73/00; B29C73/04; B29C73/10; B29L; B29L2030/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10882
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) | 1900-04-20 | 1900-10-20 | 1901-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1904-04-20 | 1904-10-20 | 1905-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1908-04-20 | 1908-10-20 | 1909-04-21 | $7700.00 | Window Closed / Lapsed |