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Patent US3456931A successfully refreshed from Google Patents.
US3456931A
Expired / Lapsed
US
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Asbestos millboard conveyor rolls for high temperature use
Assignee: PHILIP CAREY CORP
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Filing: 1967-02-09
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Granted: 1969-07-22
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Expires: 1987-02-09
Abstract
No abstract record available.
Inventors
- 👤 Eugene D Ermenc
- 👤 Marion F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:54
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0032; B29D99/0035; F; F16; F16C; F16C13/00; B29L; B29L2031/00; B29L2031/32; B29L2031/324
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3116053A
Cited
US3317303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |