Patent US3490798A successfully refreshed from Google Patents.
US3490798A
Expired / Lapsed
US
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Ball-and-socket coupling
Assignee: Individual
•
Filing: 1968-09-27
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Granted: 1970-01-20
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Expires: 1988-09-27
Abstract
No abstract record available.
Inventors
- 👤 Rudolf A Spyra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:34
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0614; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32163; Y10T403/32172; Y10T403/32181; Y10T403/32196; Y10T403/32204; Y10T403/32606; Y10T403/32631; Y10T403/32681; Y10T403/32803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |