US3532338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document handling device
Assignee: International Business Machines Corp
•
Filing: 1968-04-12
•
Granted: 1970-10-06
•
Expires: 1988-04-12
Abstract
No abstract record available.
Inventors
- 👤 Paul R Brinson
- 👤 Howard A Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/02; G06K13/06; G06K13/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1193693A
Cited
US2359856A
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US2793035A
Cited
US3026994A
Cited
US3178175A
Cited
US3108801A
Cited
US3168309A
Cited
US3287015A
Cited
US3433475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |