← Back to Patent Explorer
US3073222A Expired / Lapsed US ⏱️ 0.0 years remaining

Camera with a built-in exposure meter

Assignee: Ernst Leitz Wetzlar GmbH
•
Filing: 1961-02-27
•
Granted: 1963-01-15
•
Expires: 1981-02-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Broschke Heinrich

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 10:42
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/04

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 161 words
IN A CAMERA, THE COMBINATION COMPRISING: AN EXPOSURE METER INCLUDING A PHOTOELECTRIC CELL, A MEASURING MECHANISM WITH A MOVABLE INDICATOR ELECTRICALLY CONNECTED TO SAID CELL FOR DEFLECTION OF SAID INDICATOR IN RESPONSE TO THE CURRENT OF SAID CELL, AND SENSITIVITY ADJUSTMENT MEANS OPERATIVELY CONNECTED TO SAID CELL FOR ALTERING THE SENSITIVITY OF SAI DMETER SO AS TO ESTABLISH TWO MEASURING RANGES, MEANS ON SAID CAMERA FOR ADJUSTING THE EXPOSURE TIME AND DIAPHRAGM MEANS OF SAID CAMERA; A FLEXIBLE TAPE IN OPERATIVE CONNECTION WITH SAID ADJUSTING MEANS AND MOVING LENGTHWISE IN ACCORDANCE WITH ADJUSTMENT OF SAID ADJUSTING MEANS; MEANS FOR OPERATIVELY COUPLING INDIVIDUALLY SAID MECHANISM AND SAID SENSITIVITY ADJUSTMENT MEANS OF SAID METER TO SAID TAPE FOR TRANSMITTING MOVEMENT OF SAID TAPE TO SAID INDICATOR; AND A TWO-POSITION ADJUSTMENT MEMBER CONNECTED TO SAID TAPE AND TO SAID SENSITIVITY ADJUSTMENT MEANS FOR MOVING SAID TAPE LENGTHWISE FOR A PREDETERMINED DISTANCE THEREBY ALTERING CONCURRENTLY METER SENSITIVITY AND SELECTING ONE AMONG THE SAID TWO RANGES.

References Cited (Backward Citations)

US2150365A Cited
US2285761A Cited
US2256208A Cited
US2379102A Cited
US2387466A Cited
US2521093A Cited
US2983206A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-01-14 1966-07-16 1967-01-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-01-14 1970-07-16 1971-01-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-01-14 1974-07-16 1975-01-15 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag