Patent US3229705A successfully refreshed from Google Patents.
US3229705A
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US
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Fluid memory
Assignee: International Business Machines Corp
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Filing: 1963-03-29
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Granted: 1966-01-18
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Expires: 1983-03-29
Abstract
No abstract record available.
Inventors
- 👤 Richard E Norwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:42
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/08; F15C1/10; F15C1/12; G; G11; G11C; G11C25/00; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/212; Y10T137/2125; Y10T137/2147; Y10T137/2158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
APPARATUS FOR STORING BINARY INFORMATION AND FOR RETRIEVING THE SAME, COMPRISING A FLUID STORAGE ELEMENT HAVING TWO STABLE STATES DEFINED BY A FLUID POWER STREAM BEING DISCHARGED SELECTIVELY THROUGH ONE OR THE OTHER OF TWO OUTLETS, CONTROL MEANS INCLUDING CONTROL PORTS SELECTIVELY CHARGEABLE WITH A CONTROL PRESSURE FLUID SEPARATE FROM THE POWER STREAM FLUID FOR SWITCHING THE STREAM SELECTIVE LY TO SAID OUTLETS AND THEREBY TO ITS SAID STATES, MEANS FOR CONVEYING A FLUID PRESSURE OUTPUT PULSE ONLY WHILE AND DURING THE TIME THE STREAM IS BEING SWITCHED FROM EITHER OF THE OUTLETS TO THE OTHER OUTLET, WHEREBY SAID PULSE WILL BE CONVEYED ONLY IF THE CONTROL MEANS EFFECTS SWITCHING OF THE STREAM, AND MEANS OPERABLE RESPONSIVELY TO EACH OUTPUT PULSE.
Claim 2
Dependent Claim
121 words
APPARATUS FOR STORING BINARY INFORMATION AND FOR RETRIEVING THE SAME, COMPRISING A FLUID STORAGE ELEMENT HAVING TWO STABLE STATES DEFINED BY A FLUID POWER STREAM BEING DISCHARGED SELECTIVELY THROUGH ONE OR THE OTHER OF TWO OUTLETS, CONTROL MEANS INCLUDING CONTROL PORTS SELECTIVELY CHARGEABLE WITH A CONTROL PRESSURE FLUID SEPARATE FROM THE POWER STREAM FLUID FOR SWITCHING THE STREAM SELECTIVE LY TO SAID OUTLETS AND THEREBY TO ITS SAID STATES, MEANS FOR CONVEYING A FLUID PRESSURE OUTPUT PULSE ONLY WHILE AND DURING THE TIME THE STREAM IS BEING SWITCHED FROM EITHER OF THE OUTLETS TO THE OTHER OUTLET, WHEREBY SAID PULSE WILL BE CONVEYED ONLY IF THE CONTROL MEANS EFFECTS SWITCHING OF THE STREAM, AND MEANS OPERABLE RESPONSIVELY TO EACH OUTPUT PULSE.
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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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |