US3322964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selectable power source for lamp including rechargeable battery
Assignee: Airequipt Inc
•
Filing: 1964-09-29
•
Granted: 1967-05-30
•
Expires: 1984-09-29
Abstract
No abstract record available.
Inventors
- 👤 Henry J Walter
- 👤 Torulf F Aasen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:04
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/70; H01R13/703; H02; H02J; H02J7/00; H02J7/02; H02J7/60; H02J7/61; H02J7/70; Y; Y10; Y10S; Y10S320/00; Y10S320/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ILLUMINATED SLIDE VIEWER COMPRISING THE COMBINATION OF SLIDE ILLUMINATING LAMP, A VOLTAGE STEP DOWN TRANSFORMER HAVING ITS SECONDARY REMOVABLY COUPLED ACROSS SAID LAMP BY A SEPARABLE CONNECTOR COMPRISING A TWO CONTACT PLUG AND TWO COOPERATING SOCKET TERMINALS, A BATTERY, A RECTIFIER CONNECTED IN SERIES WITH SAID BATTERY, SAID SERIALLY CONNECTED BATTERY AND RECTIFIER BEING CONNECTED ACROSS SAID LAMP, A SWITCH MEANS CONNECTED ACROSS SAID RECTIFIER POSITIONED TO BE OPENED BY COUPLING MOVEMENT OF THE TRANSFORMER TO THE LAMP THROUGH SAID CON-
Claim 2
Dependent Claim
82 words
AN ILLUMINATED SLIDE VIEWER COMPRISING THE COMBINATION OF SLIDE ILLUMINATING LAMP, A VOLTAGE STEP DOWN TRANSFORMER HAVING ITS SECONDARY REMOVABLY COUPLED ACROSS SAID LAMP BY A SEPARABLE CONNECTOR COMPRISING A TWO CONTACT PLUG AND TWO COOPERATING SOCKET TERMINALS, A BATTERY, A RECTIFIER CONNECTED IN SERIES WITH SAID BATTERY, SAID SERIALLY CONNECTED BATTERY AND RECTIFIER BEING CONNECTED ACROSS SAID LAMP, A SWITCH MEANS CONNECTED ACROSS SAID RECTIFIER POSITIONED TO BE OPENED BY COUPLING MOVEMENT OF THE TRANSFORMER TO THE LAMP THROUGH SAID CON-
References Cited (Backward Citations)
US1418398A
Cited
US2089165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |