US3570845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card weight
Assignee: International Business Machines Corp
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Filing: 1969-01-07
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Granted: 1971-03-16
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Expires: 1989-01-07
Abstract
Abstract A WEIGHT FOR BEARING ON A STACK OF CARDS WHICH ARE DISPOSED IN A VERTICAL HOPPER AND ARE FED ONE AT A TIME FROM THE BOTTOM OF THE STACK AND INCLUDING ONE-WAY ENGAGING MEANS CARRIED BY THE WEIGHT AND EFFECTIVE ON THE SIDES OF THE HOPPER FOR HOLDING THE WEIGHT AGAINST UPWARD MOVEMENT BUT ALLOWING IT TO MOVE FREELY DOWNWARDLY.
Inventors
- 👤 Clarence J Kellerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/02; G06K13/08; G06K13/10
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |