Patent US2917909A successfully refreshed from Google Patents.
US2917909A
Expired / Lapsed
US
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Flexible joints
Assignee: Individual
•
Filing: 1957-09-19
•
Granted: 1959-12-22
•
Expires: 1977-09-19
Abstract
No abstract record available.
Inventors
- 👤 Josutis Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:00
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/02; F16C1/08; F16D; F16D3/00; F16D3/50; F16D3/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US393065A
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US1649310A
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US1808194A
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US1871528A
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US2023693A
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US2170627A
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US2332859A
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US2652623A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |