US8421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sho web-bath
Assignee: —
•
Filing: —
•
Granted: 1851-10-14
•
Expires: 1868-10-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:47
CPC Classifications
A; A47; A47K; A47K3/00; A47K3/28; A47K3/30; A47K3/32; A47K3/325
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) | 1854-10-13 | 1855-04-14 | 1855-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1858-10-13 | 1859-04-14 | 1859-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1862-10-13 | 1863-04-14 | 1863-10-14 | $7700.00 | Window Closed / Lapsed |