Patent US2821390A successfully refreshed from Google Patents.
US2821390A
Expired / Lapsed
US
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Sheet conveyor mechanism
Assignee: Harris Corp
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Filing: 1953-08-26
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Granted: 1958-01-28
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Expires: 1973-08-26
Abstract
No abstract record available.
Inventors
- 👤 Robert K Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:19
CPC Classifications
B; B41; B41F; B41F21/00; B41F21/08; B65; B65H; B65H5/00; B65H5/08; B65H5/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1093152A
Cited
US1476713A
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US1566604A
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US1746492A
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US2138405A
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US2138407A
Cited
US2245343A
Cited
US2425680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |