US3343690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for transporting sheet material
Assignee: Dean Research Corp
•
Filing: 1966-02-14
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Granted: 1967-09-26
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Expires: 1986-02-14
Abstract
No abstract record available.
Inventors
- 👤 George A Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:36
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/30; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/068; B65G57/00; B65G57/30; B65G57/301; B65G57/302; B65H29/00; B65H29/16; B65H29/18; B65H29/24; B65H29/241; B65H31/26; B65G2249/00; B65G2249/04; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4212; B65H2301/42122; B65H2701/00; B65H2701/10; B65H2701/17; B65H2701/176
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
APPARATUS FOR TRANSPORTING SHEETS COMPRISING A SUPPORT, A HEAD SECURED TO SAID SUPPORT, SAID HEAD HAVING A RECESS FOR THE RECEPTION OF A STACK OF SHEETS, A LEVELING PLATE IN SAID HEAD ADAPTED TO CONTACT THE TOP OF SAID TOP SHEET, A CAVITY IN SAID HEAD CONNECTED TO A SOURCE OF VACUUM, THE EDGES OF SAID SHEETS COMMUNICATING WITH SAID CAVITY, SAID VACUUM DRAWING AIR FROM BETWEEN SAID SHEETS TO MAINTAIN SAID SHEETS IN A STACK SUPPORTED BY THE HEAD, AND MEANS FOR RAISING A SHEET INTO SAID HEAD.
Claim 2
Dependent Claim
89 words
APPARATUS FOR TRANSPORTING SHEETS COMPRISING A SUPPORT, A HEAD SECURED TO SAID SUPPORT, SAID HEAD HAVING A RECESS FOR THE RECEPTION OF A STACK OF SHEETS, A LEVELING PLATE IN SAID HEAD ADAPTED TO CONTACT THE TOP OF SAID TOP SHEET, A CAVITY IN SAID HEAD CONNECTED TO A SOURCE OF VACUUM, THE EDGES OF SAID SHEETS COMMUNICATING WITH SAID CAVITY, SAID VACUUM DRAWING AIR FROM BETWEEN SAID SHEETS TO MAINTAIN SAID SHEETS IN A STACK SUPPORTED BY THE HEAD, AND MEANS FOR RAISING A SHEET INTO SAID HEAD.
References Cited (Backward Citations)
US2249201A
Cited
US2716497A
Cited
US2920916A
Cited
GB882378A
Cited
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Cited
US3118554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |