US3037700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indexing registers for calculators
Assignee: International Business Machines Corp
•
Filing: 1956-11-29
•
Granted: 1962-06-05
•
Expires: 1976-11-29
Abstract
No abstract record available.
Inventors
- 👤 Genung L Clapper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:45
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/34; G06F9/355
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2658681A
Cited
US2800277A
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GB749836A
Cited
FR1099467A
Cited
US2898041A
Cited
US2939634A
Cited
FR1106950A
Cited
FR1119767A
Cited
US2957626A
Cited
US2914248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |