Patent US5325938A successfully refreshed from Google Patents.
Patent US2624010A successfully refreshed from Google Patents.
US2624010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor discharge lamp
Assignee: Standard Oil Development Co
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Filing: 1950-12-01
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Granted: 1952-12-30
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Expires: 1970-12-01
Abstract
No abstract record available.
Inventors
- 👤 Nugent F Chamberlain
- 👤 Robert J Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:28
CPC Classifications
H; H01; H01J; H01J61/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
APPARATUS ADAPTED FOR CONDUCTING PHOTOCHEMICAL REACTIONS WHICH COMPRISES, IN COMBINATION, A GLASS ENVELOPE DEFINING AN INLET AND AN OUTLET, A VAPOR DISCHARGE LAMP MOUNTED CONCENTRICALLY WITHIN SAID ENVELOPE AND DEFINING THEREWITH AN ANNULAR PASSAGEWAY THROUGH WHICH REACTANTS MAY PASS FROM SAID INLET TO SAID OUTLET, SAID LAMP INCLUDING AN ANODE MOUNTED IN AN UPPER PART OF SAID LAMP HAVING A DISCHARGE END POINTING DOWNWARDLY, A METALLIC CATHODE MOUNTED IN A LOWER PORTION OF SAID LAMP SPACED AWAY FROM SAID ANODE WITH A DISCHARGE END POINTING UPWARDLY, AN INTERNAL COOLING MEANS ARRANGED IN THE LOWER PORTION OF SAID LAMP PROJECTING INTO THE SPACE BETWEEN THE ANODE AND CATHODE A DISTANCE SUFFICIENT TO COOL SAID SPACE, SAID LAMP HAVING A CENTRAL TUBULAR MEMBER OF FUSED SILICA WITH FIRST AND SECOND END MEMBERS SEALED THERETO THROUGH GRADED SEALS ARRANGED AT POINTS REMOTE
Claim 2
Dependent Claim
139 words
APPARATUS ADAPTED FOR CONDUCTING PHOTOCHEMICAL REACTIONS WHICH COMPRISES, IN COMBINATION, A GLASS ENVELOPE DEFINING AN INLET AND AN OUTLET, A VAPOR DISCHARGE LAMP MOUNTED CONCENTRICALLY WITHIN SAID ENVELOPE AND DEFINING THEREWITH AN ANNULAR PASSAGEWAY THROUGH WHICH REACTANTS MAY PASS FROM SAID INLET TO SAID OUTLET, SAID LAMP INCLUDING AN ANODE MOUNTED IN AN UPPER PART OF SAID LAMP HAVING A DISCHARGE END POINTING DOWNWARDLY, A METALLIC CATHODE MOUNTED IN A LOWER PORTION OF SAID LAMP SPACED AWAY FROM SAID ANODE WITH A DISCHARGE END POINTING UPWARDLY, AN INTERNAL COOLING MEANS ARRANGED IN THE LOWER PORTION OF SAID LAMP PROJECTING INTO THE SPACE BETWEEN THE ANODE AND CATHODE A DISTANCE SUFFICIENT TO COOL SAID SPACE, SAID LAMP HAVING A CENTRAL TUBULAR MEMBER OF FUSED SILICA WITH FIRST AND SECOND END MEMBERS SEALED THERETO THROUGH GRADED SEALS ARRANGED AT POINTS REMOTE
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) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |