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US2848727A
Expired / Lapsed
US
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Apparatus for separating articles
Assignee: AT&T Inc
•
Filing: 1953-04-07
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Granted: 1958-08-26
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Expires: 1973-04-07
Abstract
No abstract record available.
Inventors
- 👤 Arnold R Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:03
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/40; B; B03; B03C; B03C7/00; B03C7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1110896A
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US1179937A
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US1897963A
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US2197864A
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US2280751A
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US2317210A
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US2322986A
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US2414993A
Cited
GB650025A
Cited
US2484782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |