Patent US2664792A successfully refreshed from Google Patents.
US2664792A
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US
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Multilength continuous doctor blade
Assignee: Brown Co
•
Filing: 1949-09-27
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Granted: 1954-01-05
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Expires: 1969-09-27
Abstract
No abstract record available.
Inventors
- 👤 Ernest P Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:22
CPC Classifications
D; D21; D21G; D21G3/00; D21G3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1057073A
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US2148455A
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US2300908A
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US2417796A
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US2487409A
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US2494334A
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US2567967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |