Patent US3490119A successfully refreshed from Google Patents.
US3490119A
Expired / Lapsed
US
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Polyurethane rubber covered roll
Assignee: Yamauchi Rubber Industry Co Ltd
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Filing: 1968-10-23
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Granted: 1970-01-20
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Expires: 1988-10-23
Abstract
No abstract record available.
Inventors
- 👤 Yasuo Fukuyama
- 👤 Yosuke Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:32
CPC Classifications
F; F16; F16C; F16C13/00; B; B29; B29D; B29D99/00; B29D99/0032; B29D99/0035; D; D21; D21F; D21F3/00; D21F3/02; D21F3/08; B29K; B29K2995/00; B29K2995/0037; B29K2995/0049; B29L; B29L2009/00; B29L2031/00; B29L2031/32; B29L2031/324
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3030696A
Cited
US2992939A
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US3024153A
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US3218215A
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US3193441A
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US3237433A
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US3293728A
Cited
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 |