US2924434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety joints
Assignee: M M KINLEY CO
•
Filing: 1955-08-01
•
Granted: 1960-02-09
•
Expires: 1975-08-01
Abstract
No abstract record available.
Inventors
- 👤 Rossiter R Potter
- 👤 Clifford E Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:30
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2049289A
Cited
US2259191A
Cited
US2670927A
Cited
US2387682A
Cited
US2463353A
Cited
AT162690B
Cited
US2532686A
Cited
US2562298A
Cited
US2698761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |