US3307818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum board manifold
Assignee: Individual
•
Filing: 1965-03-19
•
Granted: 1967-03-07
•
Expires: 1985-03-19
Abstract
No abstract record available.
Inventors
- 👤 Cocito Joe Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:33
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/02; B66C1/0281; B25; B25B; B25B11/00; B25B11/005; B66C1/0231; G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A VACUUM BOARD FOR HOLDING SHEETS OF PHOTOGRAPHIC APPARATUS, COMPRISING: (A) A FRONT PANEL MEMBER HAVING A PATTERN OF SUCTION HOLES THERETHROUGH; (B) VACUUM-OPERATED VALVE MEANS IN EACH HOLE FOR CLOSING THE LATTER WHEN THE HOLE IS NOT COVERED BY A SHEET; (C) MANIFOLD MEANS BEHIND THE FRONT PANEL MEMBER AND COMPRISING MULTIPLE CHANNELS DISPOSED AGAINST SAID MEMBER IN COMMUNICATION WITH SAID HOLES, THE CHANNELS BEING MUTUALLY CONNECTED TOGETHER IN SERIES TO FORM ONE CONTINUOUS PASSAGEWAY, ONE END OF THE SERIES BEING CLOSED AND THE OTHER END HAVING AN EVACUATION OUTLET, THE CHANNELS BEING SHALLOW AS COMPARED WITH THEIR WIDTH, AND THEIR WIDTH BEING SMALL AS COMPARED WITH AN EDGE LENGTH OF THE VACUUM BOARD.
Claim 2
Dependent Claim
115 words
A VACUUM BOARD FOR HOLDING SHEETS OF PHOTOGRAPHIC APPARATUS, COMPRISING: (A) A FRONT PANEL MEMBER HAVING A PATTERN OF SUCTION HOLES THERETHROUGH; (B) VACUUM-OPERATED VALVE MEANS IN EACH HOLE FOR CLOSING THE LATTER WHEN THE HOLE IS NOT COVERED BY A SHEET; (C) MANIFOLD MEANS BEHIND THE FRONT PANEL MEMBER AND COMPRISING MULTIPLE CHANNELS DISPOSED AGAINST SAID MEMBER IN COMMUNICATION WITH SAID HOLES, THE CHANNELS BEING MUTUALLY CONNECTED TOGETHER IN SERIES TO FORM ONE CONTINUOUS PASSAGEWAY, ONE END OF THE SERIES BEING CLOSED AND THE OTHER END HAVING AN EVACUATION OUTLET, THE CHANNELS BEING SHALLOW AS COMPARED WITH THEIR WIDTH, AND THEIR WIDTH BEING SMALL AS COMPARED WITH AN EDGE LENGTH OF THE VACUUM BOARD.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |