US4023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hijbst
Assignee: —
•
Filing: —
•
Granted: 1845-05-01
•
Expires: 1862-05-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:02
CPC Classifications
D; D01; D01G; D01G9/00
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) | 1848-04-30 | 1848-10-30 | 1849-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1852-04-30 | 1852-10-30 | 1853-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1856-04-30 | 1856-10-30 | 1857-05-01 | $7700.00 | Window Closed / Lapsed |