Patent US689A successfully refreshed from Google Patents.
US689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Julius austin
Assignee: —
•
Filing: —
•
Granted: 1838-04-13
•
Expires: 1855-04-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:47
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/12; Y; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/901; Y10S376/903; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/21; Y10T83/2105; Y10T83/2107; Y10T83/929; Y10T83/9372
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) | 1841-04-12 | 1841-10-12 | 1842-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1845-04-12 | 1845-10-12 | 1846-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1849-04-12 | 1849-10-12 | 1850-04-13 | $7700.00 | Window Closed / Lapsed |