Patent US3275872A successfully refreshed from Google Patents.
US3275872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector fluorescent lamp
Assignee: General Electric Co
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Filing: 1963-07-12
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Granted: 1966-09-27
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Myron A Chernin
- 👤 Elton T Leppelmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:59
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/38; H01J61/42; H01J61/44; H01J61/30; H01J61/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A FLUORSCENT REFLECTOR LAMP COMPRISING A TUBULAR ELONGATED GLASS ENVELOPE HAVING ELECTRODES SEALED INTO OPPOSITE ENDS AND CONTAINING AN IONIZABLE MEDIUM INCLUDING MERCURY VAPOR AND AN INERT GAS AT A LOW PRESSURE, A REFLECTIVE COATING AND A PHOSPHOR COATING THEREOVER RESPECTIVE TO THE ULTRAVIOLET RADIATION PRODUCED BY AN ELECTRIC DISCHARGE THROUGH SAID MEDIUM, SAID REFLECTIVE COATING EXTENDING OVER THE ENTIRE INTERIOR OF SAID ENVELOPE EXCEPT FOR A WINDOW EXTENDING IN WIDTH OVER A MINOR PORTION OF THE PERIPHERY AND IN LENGTH LESS THAN THE FULL LENGTH OF THE LAMP.
Claim 2
Dependent Claim
89 words
A FLUORSCENT REFLECTOR LAMP COMPRISING A TUBULAR ELONGATED GLASS ENVELOPE HAVING ELECTRODES SEALED INTO OPPOSITE ENDS AND CONTAINING AN IONIZABLE MEDIUM INCLUDING MERCURY VAPOR AND AN INERT GAS AT A LOW PRESSURE, A REFLECTIVE COATING AND A PHOSPHOR COATING THEREOVER RESPECTIVE TO THE ULTRAVIOLET RADIATION PRODUCED BY AN ELECTRIC DISCHARGE THROUGH SAID MEDIUM, SAID REFLECTIVE COATING EXTENDING OVER THE ENTIRE INTERIOR OF SAID ENVELOPE EXCEPT FOR A WINDOW EXTENDING IN WIDTH OVER A MINOR PORTION OF THE PERIPHERY AND IN LENGTH LESS THAN THE FULL LENGTH OF THE LAMP.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |