Patent US64062A successfully refreshed from Google Patents.
US64062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved window-shade
Assignee: —
•
Filing: —
•
Granted: 1867-04-23
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Expires: 1884-04-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:17
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24
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) | 1870-04-22 | 1870-10-22 | 1871-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1874-04-22 | 1874-10-22 | 1875-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1878-04-22 | 1878-10-22 | 1879-04-23 | $7700.00 | Window Closed / Lapsed |