US3325635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movie light
Assignee: General Electric Co
•
Filing: 1965-04-30
•
Granted: 1967-06-13
•
Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Donald M Wagner
- 👤 Edward H Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:03
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A MOVIE LIGHT WHICH COMPRISES: A HEAD UNIT HOUSING HAVING A TOP PORTION AND A BOTTOM PORTION, SAID TOP AND BOTTOM PORTIONS BEING DISCONTINUOUS SO AS TO PROVIDE PASSAGES FOR AMBIENT AIR A FLOW VERTICALLY THROUGH SAID HOUSING DUE TO COOLING CONVECTION CURRENTS SET UP BY HEAT COMING FROM HEAT SOURCES INCLUDING A LAMP MOUNTED WITHIN SAID HOUSING, THE FORWARD ENDS OF SAID TOP AND BOTTOM PORTIONS DEFINING AT LEAST PART OF A FRONT OPENING IN SAID HOUSING, SAID HOUSING BEING ADAPTED FOR ATTACHMENT OT A MOVIE CAMERA TO PROVIDE ILLUMINATION OF A SUBJECT TO BE PHOTOGRAPHED; A REFLECTOR WITHIN SAID FRONT OPENING, SAID REFLECTOR MAKING ONLY ESSENTIALLY POINT CONTACTS AT AT LEAST THREE POINTS AROUND THE PERIPHERY OF SAID FRONT OPENING WITH RAISED CONTACTS PROVIDED AT POINTS SPACED AROUND SAID PERIPHERY; MOUNTING MEANS HOLDING SAID REFLECTOR IN POSITION, SAID MOUNTING MEANS BEING RIGIDLY SECURED TO THE BACK OF SAID REFLECTOR AND TO A REAR PORTION OF SAID
Claim 2
Dependent Claim
158 words
A MOVIE LIGHT WHICH COMPRISES: A HEAD UNIT HOUSING HAVING A TOP PORTION AND A BOTTOM PORTION, SAID TOP AND BOTTOM PORTIONS BEING DISCONTINUOUS SO AS TO PROVIDE PASSAGES FOR AMBIENT AIR A FLOW VERTICALLY THROUGH SAID HOUSING DUE TO COOLING CONVECTION CURRENTS SET UP BY HEAT COMING FROM HEAT SOURCES INCLUDING A LAMP MOUNTED WITHIN SAID HOUSING, THE FORWARD ENDS OF SAID TOP AND BOTTOM PORTIONS DEFINING AT LEAST PART OF A FRONT OPENING IN SAID HOUSING, SAID HOUSING BEING ADAPTED FOR ATTACHMENT OT A MOVIE CAMERA TO PROVIDE ILLUMINATION OF A SUBJECT TO BE PHOTOGRAPHED; A REFLECTOR WITHIN SAID FRONT OPENING, SAID REFLECTOR MAKING ONLY ESSENTIALLY POINT CONTACTS AT AT LEAST THREE POINTS AROUND THE PERIPHERY OF SAID FRONT OPENING WITH RAISED CONTACTS PROVIDED AT POINTS SPACED AROUND SAID PERIPHERY; MOUNTING MEANS HOLDING SAID REFLECTOR IN POSITION, SAID MOUNTING MEANS BEING RIGIDLY SECURED TO THE BACK OF SAID REFLECTOR AND TO A REAR PORTION OF SAID
References Cited (Backward Citations)
US1376941A
Cited
US1642919A
Cited
US2898447A
Cited
US3026409A
Cited
GB931905A
Cited
US3280320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |