Patent US3533077A successfully refreshed from Google Patents.
US3533077A
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Assignee: International Business Machines Corp
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Filing: 1967-11-08
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Granted: 1970-10-06
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Expires: 1987-11-08
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Bell
- 👤 Leland D Howe Jr
- 👤 Thomas A Metz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:27
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/34; G06F9/345
Claims Analysis
Total Claims: 0
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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) | 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 |