Patent US3313667A successfully refreshed from Google Patents.
Patent US3491820A successfully refreshed from Google Patents.
US3491820A
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US
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Flexible joint structure and clips therefor
Assignee: Modular Systems Inc
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Filing: 1968-05-29
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Granted: 1970-01-27
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Expires: 1988-05-29
Abstract
No abstract record available.
Inventors
- 👤 Edward J Ostling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:01
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/09; F16B12/00; F16B12/10; F16B12/12; F16B12/20; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2708292A
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US2882110A
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US3178987A
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US3178775A
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US3159440A
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US3239988A
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US3288192A
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US3270995A
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US3430674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |