Patent US2846220A successfully refreshed from Google Patents.
US2846220A
Expired / Lapsed
US
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Sheet feeder for printing press
Assignee: LEWFOR DEV CORP
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Filing: 1953-10-12
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Granted: 1958-08-05
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Expires: 1973-10-12
Abstract
No abstract record available.
Inventors
- 👤 Mestre Luis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:36
CPC Classifications
B; B65; B65H; B65H7/00; B65H7/02; B65H7/06; B65H7/12; B65H1/00; B65H1/08; B65H1/18; B65H3/00; B65H3/08; B65H3/0808; B65H3/0816; B65H3/0833; B65H3/46; B65H3/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US625094A
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US1600959A
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US1762661A
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US2230633A
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US2220073A
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US2287140A
Cited
US2374578A
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US2479060A
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US2660113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |