US3358592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrographic printing
Assignee: Xerox Corp
•
Filing: 1966-03-17
•
Granted: 1967-12-19
•
Expires: 1986-03-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Nesin
- 👤 Leland D Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:13
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/32; G03G15/321
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN APPARATUS FOR FORMING A LATENT ELECTROSTATIC IMAGE ON A CHARGE-RETAINING RECORDING WEB COMPRISING AT LEAST ONE SHAPED ELECTRODE ON A FIRST SIDE OF SAID RECORDING WEB, A FLAT-SURFACED BACKING ELECTRODE ON THE OTHER SIDE OF SAID RECORDING WEB OPPOSITE SAID SHAPED ELECTRODE, SAID ELECTRODES BEING SPACED APART A DISTANCE GREATER THAN THE THICKNESS OF SAID RECORDING WEB SO THAT SAID WEB MAY FREELY MOVE IN THE GAP FORMED BY SAID ELECTRODES, WEB FEEDING MEANS TO INTERMITTENTLY ADVANCE SAID RECORDING WEB THROUGH SAID OPEN GAP, MEANS TO BRING SAID ELECTRODES SUFFICIENTLY CLOSE TOGETHER TO PRESS AGAINST OPPOSITE SIDES OF SAID RECORDING WEB TO THEREBY CLOSE SAID GAP AFTER WEB ADVANCE, MEANS FOR APPLYING AN ELECTRICAL RECORDING PULSE ACROSS SAID ELECTRODES WHILE SAID RECORDING WEB IS STATIONARY TO FORM AN ELECTROSTATIC
Claim 2
Independent Claim
130 words
AN APPARATUS FOR FORMING A LATENT ELECTROSTATIC IMAGE ON A CHARGE-RETAINING RECORDING WEB COMPRISING AT LEAST ONE SHAPED ELECTRODE ON A FIRST SIDE OF SAID RECORDING WEB, A FLAT-SURFACED BACKING ELECTRODE ON THE OTHER SIDE OF SAID RECORDING WEB OPPOSITE SAID SHAPED ELECTRODE, SAID ELECTRODES BEING SPACED APART A DISTANCE GREATER THAN THE THICKNESS OF SAID RECORDING WEB SO THAT SAID WEB MAY FREELY MOVE IN THE GAP FORMED BY SAID ELECTRODES, WEB FEEDING MEANS TO INTERMITTENTLY ADVANCE SAID RECORDING WEB THROUGH SAID OPEN GAP, MEANS TO BRING SAID ELECTRODES SUFFICIENTLY CLOSE TOGETHER TO PRESS AGAINST OPPOSITE SIDES OF SAID RECORDING WEB TO THEREBY CLOSE SAID GAP AFTER WEB ADVANCE, MEANS FOR APPLYING AN ELECTRICAL RECORDING PULSE ACROSS SAID ELECTRODES WHILE SAID RECORDING WEB IS STATIONARY TO FORM AN ELECTROSTATIC
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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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |