US2951637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating decimal system
Assignee: International Business Machines Corp
•
Filing: 1954-01-11
•
Granted: 1960-09-06
•
Expires: 1974-01-11
Abstract
No abstract record available.
Inventors
- 👤 Warren K Lind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:23
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/4915; G06F5/00; G06F5/01; G06F5/012; G06F7/4912; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/403; G11C11/406; G11C19/00; G11C19/18; G06F2207/00; G06F2207/491; G06F2207/49185
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2538636A
Cited
US2609143A
Cited
US2604262A
Cited
US2701095A
Cited
US2800277A
Cited
US2796592A
Cited
US2798156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |