Patent US101764A successfully refreshed from Google Patents.
US101764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved east-chair
Assignee: —
•
Filing: —
•
Granted: 1870-04-12
•
Expires: 1887-04-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:49
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/031; A47C1/034; A47C1/035
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) | 1873-04-11 | 1873-10-11 | 1874-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1877-04-11 | 1877-10-11 | 1878-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1881-04-11 | 1881-10-11 | 1882-04-12 | $7700.00 | Window Closed / Lapsed |