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US2441912A
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US
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Sheet separating device
Assignee: Bruning Charles Co Inc
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Filing: 1946-07-23
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Granted: 1948-05-18
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Expires: 1966-07-23
Abstract
No abstract record available.
Inventors
- 👤 Paul B Streich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:02
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1827753A
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US1968941A
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US1980188A
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US2292521A
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US2261971A
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US2352983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |