US104576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in sucker-rod joints
Assignee: —
•
Filing: —
•
Granted: 1870-06-21
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Expires: 1887-06-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:34
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/023; F; F16; F16G; F16G11/00; F16G11/08; Y; Y10; Y10T; Y10T403/00; Y10T403/36; Y10T403/364; Y10T403/368
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) | 1873-06-20 | 1873-12-20 | 1874-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1877-06-20 | 1877-12-20 | 1878-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1881-06-20 | 1881-12-20 | 1882-06-21 | $7700.00 | Window Closed / Lapsed |