Patent US3444501A successfully refreshed from Google Patents.
US3444501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermistor and method of fabrication
Assignee: International Business Machines Corp
•
Filing: 1966-05-16
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Granted: 1969-05-13
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 Ronald A Delaney
- 👤 Jesse J Williams Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:09
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/12; G01N27/121; H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06533; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49085; Y10T29/49099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2633521A
Cited
US2626445A
Cited
US2868935A
Cited
US2976505A
Cited
US3316184A
Cited
US3359632A
Cited
US3364565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |