US2789682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel coupling
Assignee: Joy Manufacturing Co
•
Filing: 1955-05-16
•
Granted: 1957-04-23
•
Expires: 1975-05-16
Abstract
No abstract record available.
Inventors
- 👤 Laskauskas Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:33
CPC Classifications
E; E21; E21F; E21F13/00; E21F13/06; E21F13/063; B; B65; B65G; B65G37/00; B65G2812/00; B65G2812/01; B65G2812/012; B65G2812/014; B65G2812/015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2513726A
Cited
US2604201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |