US3168308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet member handling
Assignee: Walton SL
•
Filing: 1960-08-08
•
Granted: 1965-02-02
•
Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Richard R Walton
- 👤 George E Munchbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:13
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/08; B65H3/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
THE METHOD OF INITIATING REMOVAL OF AIR PERMEABLE TOP CLOTH PIECE FROM A STACK OF AIR PERMEABLE PIECES COMPRISING, BY MEANS OF AN AIR OUTLET MEANS PROVIDED WITH A POSITIVE AIR SUPPLY, INITIALLY DIRECTING A STREAM OF AIR TO FLOW AGAINST A MARGIN PORTION OF SAID TOP PIECE TO PROMOTE ITS LOOSENING, THEREAFTER ROTATING SAID AIR OUTLET MEANS TO CAUSE SAID AIR STREAM TO FLOW AT A SUBSTANTIAL ANGLE AWAY FROM SAID STACK, THEREBY APPLYING A LIFTING FORCE TO SAID TOP PIECE AND CARRYING SAID MARGIN FROM SAID STACK.
References Cited (Backward Citations)
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Cited
US2454762A
Cited
US2441912A
Cited
US2595546A
Cited
US2791424A
Cited
US2819075A
Cited
US2953371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |