US39875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved bracket-brace for stair-rails
Assignee: —
•
Filing: —
•
Granted: 1863-09-15
•
Expires: 1880-09-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:29
CPC Classifications
G; G06; G06Q; G06Q20/00; G06Q20/04; G06Q20/042; A; A47; A47B; A47B61/00; A47B61/003; E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/32; E06B9/323
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) | 1866-09-14 | 1867-03-16 | 1867-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1870-09-14 | 1871-03-16 | 1871-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1874-09-14 | 1875-03-16 | 1875-09-15 | $7700.00 | Window Closed / Lapsed |