US184718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in sucker-rod joints
Assignee: —
•
Filing: —
•
Granted: 1876-11-28
•
Expires: 1893-11-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:39
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/08; E; E21; E21B; E21B17/00; E21B17/02; E21B17/023; Y; Y10; Y10T; Y10T403/00; Y10T403/36; Y10T403/364; Y10T403/368; Y10T403/49; Y10T403/4949; Y10T403/4966; Y10T403/55; Y10T403/556
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) | 1879-11-28 | 1880-05-29 | 1880-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-11-28 | 1884-05-29 | 1884-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-11-28 | 1888-05-29 | 1888-11-28 | $7700.00 | Window Closed / Lapsed |