Patent US1176031A successfully refreshed from Google Patents.
Patent US4278928A successfully refreshed from Google Patents.
Patent US3945668A successfully refreshed from Google Patents.
Patent US4427467A successfully refreshed from Google Patents.
Patent US1658264A successfully refreshed from Google Patents.
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
2026-10-30 09:29
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 |