← Back to Patent Explorer
US3343142A Expired / Lapsed US ⏱️ 0.0 years remaining

Xerographic coding and information storage on a specular business machine card

Assignee: Xerox Corp
•
Filing: 1963-01-02
•
Granted: 1967-09-19
•
Expires: 1983-01-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Harold E Clark

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 22:50
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G06; G06K; G06K1/00; G06K1/14; G06K1/16; Y; Y10; Y10S; Y10S347/00; Y10S347/90

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 138 words
AN INFORMATION STORAGE AND RETRIEVAL SYSTEM INCLUDING: A XEROGRAPHIC DRUM, MEANS FOR APPLYING A RETRIEVAL CODE FOR AN ORIGINAL DOCUMENT IN THE FORM OF A LATENT ELECTROSTATIC DOT PATTERN TO A FIRST PORTION OF SAID XEROGRAPHIC DRUM, MEANS FOR FORMING A LATENT ELECTROSTATIC REDUCED IMAGE OF SAID ORIGINAL DOCUMENT TO A SECOND PORTION OF SAID XEROGRAPHIC DRUM, MEANS FOR SYNCHRONIZING SAID IMAGE FORMING MEANS WITH SAID DOT FORMING MEANS, MEANS FOR DEVELOPING BOTH SAID LATEN ELECTROSTATIC REDUCED IMAGE AND SAID LATENT ELECTROSTATIC DOT PATTERN, MEANS FOR FEEDING A BUSINESS MACHINE CARD HAVING A HIGHLY SPECULAR REFLECTING SURFACE TO SAID DRUM, MEANS FOR TRANSFERRING BOTH THE DEVELOPED IMAGE AND THE DEVELOPED DOT PATTERN TO A HIGHLY SPECULAR SURFACE OF A BUSINESS MACHINE CARD, AND MEANS TO FIX BOTH THE DEVELOPED IMAGE AND THE DEVELOPED DOT PATTERN TO SAID CARD.

References Cited (Backward Citations)

US2909971A Cited
US3052564A Cited
US3045587A Cited
US3002434A Cited
US3051041A Cited
US3100427A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-09-18 1971-03-20 1971-09-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-09-18 1975-03-20 1975-09-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-09-18 1979-03-20 1979-09-19 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag