US475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Island
Assignee: —
•
Filing: —
•
Granted: 1837-11-23
•
Expires: 1854-11-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:31
CPC Classifications
D; D03; D03D; D03D49/00; D03D49/04; D03D49/06; Y; Y10; Y10S; Y10S507/00; Y10S507/935; Y10S507/936
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) | 1840-11-22 | 1841-05-24 | 1841-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1844-11-22 | 1845-05-24 | 1845-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1848-11-22 | 1849-05-24 | 1849-11-23 | $7700.00 | Window Closed / Lapsed |