US3050683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic circuit
Assignee: International Business Machines Corp
•
Filing: 1958-02-03
•
Granted: 1962-08-21
•
Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 John L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:42
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; G01; G01R; G01R15/00; G01R15/14; G01R15/20; G01R15/205; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857; Y10S505/86
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |