Patent US3054444A successfully refreshed from Google Patents.
US3054444A
Expired / Lapsed
US
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Wiper blade construction for wiped film liquid processors
Assignee: Individual
•
Filing: 1959-03-09
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Granted: 1962-09-18
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Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Frank E Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:25
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/22; B01D1/222; B01D1/223; B01D1/225; Y; Y10; Y10S; Y10S159/00; Y10S159/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1487071A
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US1624037A
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US2032785A
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US2546381A
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US2667931A
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US2838121A
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US2836251A
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US2804920A
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US2955990A
Cited
US2993842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |