US3122978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blieske
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:03
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081; G03B7/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN AUTOMATICALLY SETTABLE PHOTOGRAPHIC CAMERA COMPRISING (A) EXPOSURE SETTING RING, (B) A DIRECT CURRENT REVERSIBLE MOTOR MECHANICALLY CONNECTED TO REVERSIBLY DRIVE SAID RING, (C) A PAIR OF ALTERNATELY OPERABLE ELECTRONIC AMPLIFIERS, (D) EACH OF SAID AMPLIFIERS INCLUDING A CONTROL CIRCUIT, AN OUTPUT CIRCUIT AND A D.C. ELECTRICAL POWER SUPPLY CONNECTED IN SAID OUTPUT CIRCUIT, (E) SAID AMPLIFIERS BEING CONNECTED TO SAID MOTOR SO AS TO APPLY DRIVING CURRENTS THERETO IN OPPOSITION WHEREBY SAID POWER SUPPLIES ARE ADAPTED TO DRIVE SAID MOTOR IN REVERSE DIRECTIONS WHEN RENDERED OPERATIVE ONE AT A TIME, (F) MEANS FOR EFFECTING ALTERNATE ACTUATION OF SAID AMPLIFIERS TO EFFECT DRIVING OF SAID MOTOR EITHER FORWARD OR BACKWARD,
Claim 2
Dependent Claim
110 words
AN AUTOMATICALLY SETTABLE PHOTOGRAPHIC CAMERA COMPRISING (A) EXPOSURE SETTING RING, (B) A DIRECT CURRENT REVERSIBLE MOTOR MECHANICALLY CONNECTED TO REVERSIBLY DRIVE SAID RING, (C) A PAIR OF ALTERNATELY OPERABLE ELECTRONIC AMPLIFIERS, (D) EACH OF SAID AMPLIFIERS INCLUDING A CONTROL CIRCUIT, AN OUTPUT CIRCUIT AND A D.C. ELECTRICAL POWER SUPPLY CONNECTED IN SAID OUTPUT CIRCUIT, (E) SAID AMPLIFIERS BEING CONNECTED TO SAID MOTOR SO AS TO APPLY DRIVING CURRENTS THERETO IN OPPOSITION WHEREBY SAID POWER SUPPLIES ARE ADAPTED TO DRIVE SAID MOTOR IN REVERSE DIRECTIONS WHEN RENDERED OPERATIVE ONE AT A TIME, (F) MEANS FOR EFFECTING ALTERNATE ACTUATION OF SAID AMPLIFIERS TO EFFECT DRIVING OF SAID MOTOR EITHER FORWARD OR BACKWARD,
References Cited (Backward Citations)
US2059032A
Cited
GB491410A
Cited
US2388609A
Cited
US2683402A
Cited
US2780971A
Cited
US2874622A
Cited
GB787720A
Cited
US2913969A
Cited
US2956492A
Cited
US2841064A
Cited
US2999439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |