US3424063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus using diaphragm - type fluidcontrolled logic devices and method of making same
Assignee: International Business Machines Corp
•
Filing: 1964-11-19
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Granted: 1969-01-28
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Expires: 1984-11-19
Abstract
No abstract record available.
Inventors
- 👤 Richard E Norwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:34
CPC Classifications
F; F15; F15C; F15C3/00; F15C3/04; F15B; F15B13/00; F15C5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2529028A
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US2722962A
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US2667184A
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US2940016A
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US2902048A
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US2923331A
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US2980032A
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US3111187A
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US3044479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |