Patent US3090505A successfully refreshed from Google Patents.
US3090505A
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Unstacker
Assignee: Lamb Grays Harbor Co
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Filing: 1961-08-07
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Granted: 1963-05-21
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Gile A Mead
- 👤 Dale Ingvald
- 👤 George E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:59
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/32; B65H3/322; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/422
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
AN UNSTACKER COMPRISING A STACK SEPARATION BLADE ADAPTED TO BE ADVANCED EDGEWISE INTO A STACK OF PAPER SHEETS FOR THE REMOVAL OF THAT PORTION OF THE STACK WHICH IS ABOVE THE BLADE FROM THAT PORTION OF WHICH IS BELOW IT, A PUSHER PLATE MOVABLE WITH THE BLADE AND ENGAGEABLE WITH AN EDGE PORTION OF THE STACK ABOVE THE BLADE, SAID PUSHER PLATE BEING PIVOTABLY SUPPORTED FOR ADJUSTMENT FROM A
Claim 2
Dependent Claim
69 words
AN UNSTACKER COMPRISING A STACK SEPARATION BLADE ADAPTED TO BE ADVANCED EDGEWISE INTO A STACK OF PAPER SHEETS FOR THE REMOVAL OF THAT PORTION OF THE STACK WHICH IS ABOVE THE BLADE FROM THAT PORTION OF WHICH IS BELOW IT, A PUSHER PLATE MOVABLE WITH THE BLADE AND ENGAGEABLE WITH AN EDGE PORTION OF THE STACK ABOVE THE BLADE, SAID PUSHER PLATE BEING PIVOTABLY SUPPORTED FOR ADJUSTMENT FROM A
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |