US2672283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic multiplier
Assignee: International Business Machines Corp
•
Filing: 1948-09-03
•
Granted: 1954-03-16
•
Expires: 1968-09-03
Abstract
No abstract record available.
Inventors
- 👤 Byron L Havens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:18
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/52; G06F7/523; G06F7/527; G06F7/5272; G06F7/5275; H; H03; H03K; H03K5/00; H03K5/15; H03K5/15013; H03K5/15026; H03K5/1504; G06F2207/00; G06F2207/38; G06F2207/3804; G06F2207/3808; G06F2207/3852
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2275016A
Cited
US2405237A
Cited
US2404047A
Cited
US2398771A
Cited
US2445215A
Cited
US2428812A
Cited
US2435598A
Cited
US2406350A
Cited
US2425131A
Cited
US2447799A
Cited
US2447800A
Cited
US2482759A
Cited
US2429227A
Cited
US2429228A
Cited
US2489813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |