Patent US3588094A successfully refreshed from Google Patents.
US3588094A
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Assignee: Opto Graphics Inc
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Filing: 1968-11-08
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Granted: 1971-06-28
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Expires: 1988-11-08
Abstract
Abstract A PAPER SEPARATOR FOR SEPARATING SHEETS OF PAPER FROM A STACK THEREOF. RUBBER ROLLERS ADVANCE THE TOP SHEET FROM THE STACK AGAINST A PAIR OF PROTUBERANCES OF SHALLOW HEIGHT. THE SHEET OF PAPER SNAPS OVER THE PROTUBERANCES. IF TWO SHEETS ARE INADVERTENTLY MOVED EDGEWISE FROM THE STACK, THE TOP SHEET SNAPS OVER THE PROTUBERANCES, BUT HOLDS THE LOWER SHEET DOWN AGAINST THE PROTUBERANCES WHICH PREVENT ADVANCE OF THE SECOND SHEET.
Inventors
- 👤 Jonathan Bost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:51
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/46; B65H3/52; B65H3/5207; B65H3/5215; G; G03; G03B; G03B17/00; G03B17/28; G03B17/32; G03B17/34; G03G; G03G15/00; G03G15/65; G03G15/6502
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |