Patent US1711677A successfully refreshed from Google Patents.
US2989027A
Expired / Lapsed
US
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Parts treating and coating apparatus
Assignee: Unisys Corp
•
Filing: 1957-12-19
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Granted: 1961-06-20
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Expires: 1977-12-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Schouw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:25
CPC Classifications
C; C23; C23G; C23G3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1080704A
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US1770991A
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US1932827A
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US2107933A
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US2347684A
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US2250238A
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US2305655A
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US2412138A
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US2465161A
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US2764170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |