US3252393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash gun for underwater camera
Assignee: Individual
•
Filing: 1964-01-06
•
Granted: 1966-05-24
•
Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 Karl W Stellrecht
- 👤 Helmut H Stellrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:49
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/08; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A FLASH GUN FOR UNDERWATER PHOTOGRAPHY COMPRISING: (A) A TUBULAR METAL CASING, (B) A BRACKET FOR MOUNTING THE CASING ON THE HOUSING OF AN UNDERWATER CAMERA, (C) A FLASH LAMP SOCKET PRESSURE SEALED IN ONE END OF THE CASING AND PRESSURE SEALING SAID ONE END OF THE CASING, ONE CONTACT OF THE SOCKET BEING ELECTRICALLY CONNECTED TO THE CASING, AND THE OTHER CONTACT THEREOF BEING EXPOSED INTERIORLY OF THE CASING, (D) A REMOVABLE INNER HOUSING OF INSULATIVE MATERIAL OF A SIZE TO FIT SLIDABLY INTO THE OPPOSITE END OF THE CASING FROM THAT IN WHICH THE LAMP SOCKET IS MOUNTED, AND ENCLOSING A BATTERY, A RESISTOR AND A CAPACITOR THEREIN, (E) A CONTACT MEMBER ON THE INNER END OF THE INNER HOUSING POSITIONED TO CONTACT THE INTERIORLY EXPOSED SOCKET CONTACT MEMBER WHEN THE HOUSING IS INSERTED FULLY INTO THE CASING, (F) STOP MEANS FOR LIMITING THE INSERTION OF THE INNER HOUSING TO SUCH FULLY INSERTED CONDITION, (G) O-RINGS FITTED INTO ANNULAR GROOVES PROVIDED THEREFOR AROUND THE INNER HOUSING INWARDLY OF THE STOP MEANS FOR SEALING THE INNER HOUSING TO THE CASING,
Claim 2
Dependent Claim
181 words
A FLASH GUN FOR UNDERWATER PHOTOGRAPHY COMPRISING: (A) A TUBULAR METAL CASING, (B) A BRACKET FOR MOUNTING THE CASING ON THE HOUSING OF AN UNDERWATER CAMERA, (C) A FLASH LAMP SOCKET PRESSURE SEALED IN ONE END OF THE CASING AND PRESSURE SEALING SAID ONE END OF THE CASING, ONE CONTACT OF THE SOCKET BEING ELECTRICALLY CONNECTED TO THE CASING, AND THE OTHER CONTACT THEREOF BEING EXPOSED INTERIORLY OF THE CASING, (D) A REMOVABLE INNER HOUSING OF INSULATIVE MATERIAL OF A SIZE TO FIT SLIDABLY INTO THE OPPOSITE END OF THE CASING FROM THAT IN WHICH THE LAMP SOCKET IS MOUNTED, AND ENCLOSING A BATTERY, A RESISTOR AND A CAPACITOR THEREIN, (E) A CONTACT MEMBER ON THE INNER END OF THE INNER HOUSING POSITIONED TO CONTACT THE INTERIORLY EXPOSED SOCKET CONTACT MEMBER WHEN THE HOUSING IS INSERTED FULLY INTO THE CASING, (F) STOP MEANS FOR LIMITING THE INSERTION OF THE INNER HOUSING TO SUCH FULLY INSERTED CONDITION, (G) O-RINGS FITTED INTO ANNULAR GROOVES PROVIDED THEREFOR AROUND THE INNER HOUSING INWARDLY OF THE STOP MEANS FOR SEALING THE INNER HOUSING TO THE CASING,
References Cited (Backward Citations)
US2872622A
Cited
US3162376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |