Patent US3287734A successfully refreshed from Google Patents.
US3287734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic ink recording
Assignee: Xerox Corp
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Filing: 1965-11-26
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Granted: 1966-11-22
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Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 Kazan Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:35
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/032; H04N1/034
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A METHOD OF RECORDING WITH LIQUID INK COMPRISING THE STEPS OF: FORMING A DROPLET STEAM OF LIQUID INK INCLUDING THEREIN A DISTRIBUTION OF A MAGNETIC POLARIZABLE COMPONENT; SELECTIVELY POLARIZING THE DROPLETS IN SAID STREAM BY MEANS OF AN APPLIED MAGNETIC FIELD RESPONSIVE TO A SIGNAL OF INFORMATION INTELLIGENCE; AND, APPLYING A SECOND MAGNETIC FIELD TO SAID DROPLETS AFTER SAID LAST RECITED STEP TO DEFLECT AT LEAST SOME OF SAID DROPLETS RELATIVE TO A SURFACE ON WHICH DROPLETS DEPOSIT TO RECORD SAID INFORMATION.
Claim 2
Independent Claim
82 words
A METHOD OF RECORDING WITH LIQUID INK COMPRISING THE STEPS OF: FORMING A DROPLET STEAM OF LIQUID INK INCLUDING THEREIN A DISTRIBUTION OF A MAGNETIC POLARIZABLE COMPONENT; SELECTIVELY POLARIZING THE DROPLETS IN SAID STREAM BY MEANS OF AN APPLIED MAGNETIC FIELD RESPONSIVE TO A SIGNAL OF INFORMATION INTELLIGENCE; AND, APPLYING A SECOND MAGNETIC FIELD TO SAID DROPLETS AFTER SAID LAST RECITED STEP TO DEFLECT AT LEAST SOME OF SAID DROPLETS RELATIVE TO A SURFACE ON WHICH DROPLETS DEPOSIT TO RECORD SAID INFORMATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |