Patent US3512853A successfully refreshed from Google Patents.
US3512853A
Expired / Lapsed
US
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Water and lubricant sealing means for mill rolls
Assignee: MESTA ENGINEERING COMPANY APARTNERSHIP OF PA
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Filing: 1968-05-29
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Granted: 1970-05-19
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Expires: 1988-05-29
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Petros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:54
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/34; F16C19/38; F16C19/383; F16C19/388; B; B21; B21B; B21B31/00; B21B31/07; B21B31/078; F16C33/00; F16C33/72; F16C33/76; F16C33/768; F16C2322/00; F16C2322/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1024699A
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US1957054A
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US2243009A
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US2055532A
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US2161768A
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US2328676A
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US2592645A
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US2990201A
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US3169809A
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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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |