Patent US49138A successfully refreshed from Google Patents.
US49138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in churns
Assignee: —
•
Filing: —
•
Granted: 1865-08-01
•
Expires: 1882-08-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:32
CPC Classifications
F; F16; F16H; F16H21/00; F16H21/10; F16H21/16; F16H21/18; F16H21/36; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/21; Y10T74/2142; Y10T74/2151
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) | 1868-07-31 | 1869-01-30 | 1869-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1872-07-31 | 1873-01-30 | 1873-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1876-07-31 | 1877-01-30 | 1877-08-01 | $7700.00 | Window Closed / Lapsed |