US2903604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multistable circuit
Assignee: International Business Machines Corp
•
Filing: 1955-01-03
•
Granted: 1959-09-08
•
Expires: 1975-01-03
Abstract
No abstract record available.
Inventors
- 👤 Robert A Henle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:50
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/2893; H03K23/00; H03K23/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2486391A
Cited
US2647238A
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US2701303A
Cited
US2652460A
Cited
US2773980A
Cited
US2714702A
Cited
US2810072A
Cited
US2743359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |