US1658264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sucker-rod coupling
Assignee: Individual
•
Filing: 1926-03-16
•
Granted: 1928-02-07
•
Expires: 1946-03-16
Abstract
No abstract record available.
Inventors
- 👤 Walter A Sutton
- 👤 Fay M Kelso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:15
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/046; E21B17/0465; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079
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) | 1931-02-06 | 1931-08-08 | 1932-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-02-06 | 1935-08-08 | 1936-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-02-06 | 1939-08-08 | 1940-02-07 | $7700.00 | Window Closed / Lapsed |