US2831150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical information storage circuits
Assignee: International Standard Electric Corp
•
Filing: 1951-09-24
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Granted: 1958-04-15
•
Expires: 1971-09-24
Abstract
No abstract record available.
Inventors
- 👤 Wright Esmond Philip Goodwin
- 👤 Orford Roy Chalice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:45
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/498; G06F7/4981; G06F7/22; G06F7/24; G11; G11C; G11C19/00; G11C19/02; G11C19/04; G11C19/20; G11C19/205; G11C19/207; H; H03; H03K; H03K23/00; H03K23/82; H04; H04L; H04L25/00; H04L25/02; H04L25/38; H04L25/40; H04L25/45; H04Q; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/32; H04Q1/36; H04Q3/00; H04Q3/0004; H04Q3/42
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |