US300228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible chair
Assignee: —
•
Filing: —
•
Granted: 1884-06-10
•
Expires: 1901-06-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:50
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/021; A47C1/00; A47C1/02; A47C1/031; A47C1/034; A47C1/035; A47C7/00; A47C7/36; A47C7/40; A47C7/44; A47C7/445
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) | 1887-06-10 | 1887-12-10 | 1888-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1891-06-10 | 1891-12-10 | 1892-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1895-06-10 | 1895-12-10 | 1896-06-10 | $7700.00 | Window Closed / Lapsed |