US3418910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Release device for a photographic camera
Assignee: Hittech Prontor GmbH
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Filing: 1966-09-19
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Granted: 1968-12-31
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Expires: 1986-09-19
Abstract
No abstract record available.
Inventors
- 👤 Waldemar T Rentschler
- 👤 Franz W R Starp
- 👤 Mutterer Heinz Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:35
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/28; G; G03; G03B; G03B9/00; G03B9/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A RELEASE DEVICE FOR A PHOTOGRAPHIC CAMERA FOR ACHIEVING RELATIVELY LONG EXPOSURE TIMES OF VARIOUS DURATION IN THE "B" SETTING OF THE CAMERA; A RELEASE PLUNGER FOR ACTUATING THE CAMERA''S SHUTTER; AN ADJUSTABLE ELECTRONIC TIMING DEVICE; MEANS OPERABLY CONNECTING SAID RELEASE PLUNGER AND SAID ELECTRONIC TIMING DEVICE FOR ACTUATION OF SAID RELEASE DEVICE; SAID ELECTRONIC TIMING DEVICE INCLUDING RESISTOR-CAPACITOR MEANS HAVING CONTACT SWITCH MEANS TO INITIATE THE CHARGING OF THE CAPACITOR OF SAID RESISTOR-CAPACITOR MEANS, AND RELAY MEANS OPERABLY CONNECTED TO SAID SWITCH MEANS AND SAID RESISTOR-CAPACITOR MEANS, AND CONNECTING MEANS FOR ATTACHING SAID RELAY MEANS TO THE FLASH CONTACT CONNECTOR SOCKET OF THE CAMERA,
Claim 2
Dependent Claim
105 words
A RELEASE DEVICE FOR A PHOTOGRAPHIC CAMERA FOR ACHIEVING RELATIVELY LONG EXPOSURE TIMES OF VARIOUS DURATION IN THE "B" SETTING OF THE CAMERA; A RELEASE PLUNGER FOR ACTUATING THE CAMERA''S SHUTTER; AN ADJUSTABLE ELECTRONIC TIMING DEVICE; MEANS OPERABLY CONNECTING SAID RELEASE PLUNGER AND SAID ELECTRONIC TIMING DEVICE FOR ACTUATION OF SAID RELEASE DEVICE; SAID ELECTRONIC TIMING DEVICE INCLUDING RESISTOR-CAPACITOR MEANS HAVING CONTACT SWITCH MEANS TO INITIATE THE CHARGING OF THE CAPACITOR OF SAID RESISTOR-CAPACITOR MEANS, AND RELAY MEANS OPERABLY CONNECTED TO SAID SWITCH MEANS AND SAID RESISTOR-CAPACITOR MEANS, AND CONNECTING MEANS FOR ATTACHING SAID RELAY MEANS TO THE FLASH CONTACT CONNECTOR SOCKET OF THE CAMERA,
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |