US7603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hazard knowles
Assignee: —
•
Filing: —
•
Granted: 1850-08-27
•
Expires: 1867-08-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:56
CPC Classifications
B; B27; B27B; B27B33/00; B27B33/02; B27B33/08; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9319; Y10T83/9367
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) | 1853-08-26 | 1854-02-25 | 1854-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1857-08-26 | 1858-02-25 | 1858-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1861-08-26 | 1862-02-25 | 1862-08-27 | $7700.00 | Window Closed / Lapsed |