US30365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for steam-engines
Assignee: —
•
Filing: —
•
Granted: 1860-10-09
•
Expires: 1877-10-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:06
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/09; B62D5/093; B62D5/097; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638; Y10T137/86646; Y10T137/86662
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) | 1863-10-09 | 1864-04-09 | 1864-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1867-10-09 | 1868-04-09 | 1868-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1871-10-09 | 1872-04-09 | 1872-10-09 | $7700.00 | Window Closed / Lapsed |