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US3509331A
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Serial-by-digit recirculating accumulating register
Assignee: International Business Machines Corp
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Filing: 1966-10-24
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Granted: 1970-04-28
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Expires: 1986-10-24
Abstract
No abstract record available.
Inventors
- 👤 Alfred Cutaia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:12
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/4912; E; E21; E21B; E21B19/00; E21B19/02; E21B19/04; G06Q; G06Q20/00; G06Q20/08; G06Q20/20; G06F2207/00; G06F2207/491; G06F2207/4919
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) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |