Patent US2613790A successfully refreshed from Google Patents.
US3081685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflex camera
Assignee: Ernst Leitz Wetzlar GmbH
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Filing: 1961-03-02
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Granted: 1963-03-19
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Expires: 1981-03-02
Abstract
No abstract record available.
Inventors
- 👤 Schlapp Werner
- 👤 Naumann Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:15
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/02; G03B9/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN A REFLEX CAMERA HAVING AN OBJECTIVE WITH A DIAPHRAGM, SAID DIAPHRAGM BEING SETTABLE AUTOMATICALLY TO A PREADJUSTED VALUE IN DEPENDENCE ON THE ACTUATION OF THE SHUTTER RELEASE, THE COMBINATION OF A VARIABLE DIAPHRAGM, FIRST AND SECOND PIVOTALLY MOUNTED DIAPHRAGM BLADE RINGS ON BOTH SIDES OF SAID DIAPHRAGM AND INDEPENDENT OF EACH OTHER, MEANS CONNECTED TO SAID FIRST RING FOR PIVOTING THE SAME WHEN A RELEASE MECHANISM OF THE CAMERA IS ACTUATED, MEANS CONNECTED TO SAID SECOND RING AND EXTENDING TO THE EXTERIOR OF SAID OBJECTIVE FOR ADJUSTING SAID SECOND RING TO SET THE DIAPHRAGM OPENING, MEANS FOR ADJUSTING THE POSITION TO WHICH SAID FIRST RING WILL CLOSE WHEN ACTUATED BY A RELEASE MECHANISM OF THE CAMERA, FIRST SPRING MEANS BIASSING SAID SECOND RING TO MAINTAIN SAID DIA-
Claim 2
Dependent Claim
128 words
IN A REFLEX CAMERA HAVING AN OBJECTIVE WITH A DIAPHRAGM, SAID DIAPHRAGM BEING SETTABLE AUTOMATICALLY TO A PREADJUSTED VALUE IN DEPENDENCE ON THE ACTUATION OF THE SHUTTER RELEASE, THE COMBINATION OF A VARIABLE DIAPHRAGM, FIRST AND SECOND PIVOTALLY MOUNTED DIAPHRAGM BLADE RINGS ON BOTH SIDES OF SAID DIAPHRAGM AND INDEPENDENT OF EACH OTHER, MEANS CONNECTED TO SAID FIRST RING FOR PIVOTING THE SAME WHEN A RELEASE MECHANISM OF THE CAMERA IS ACTUATED, MEANS CONNECTED TO SAID SECOND RING AND EXTENDING TO THE EXTERIOR OF SAID OBJECTIVE FOR ADJUSTING SAID SECOND RING TO SET THE DIAPHRAGM OPENING, MEANS FOR ADJUSTING THE POSITION TO WHICH SAID FIRST RING WILL CLOSE WHEN ACTUATED BY A RELEASE MECHANISM OF THE CAMERA, FIRST SPRING MEANS BIASSING SAID SECOND RING TO MAINTAIN SAID DIA-
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |