US56694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in steam-gages
Assignee: —
•
Filing: —
•
Granted: 1866-07-31
•
Expires: 1883-07-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/08; G01L7/082
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1869-07-30 | 1870-01-29 | 1870-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1873-07-30 | 1874-01-29 | 1874-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1877-07-30 | 1878-01-29 | 1878-07-31 | $7700.00 | Window Closed / Lapsed |