FR2291606B1 - - Google Patents
Info
- Publication number
- FR2291606B1 FR2291606B1 FR7534445A FR7534445A FR2291606B1 FR 2291606 B1 FR2291606 B1 FR 2291606B1 FR 7534445 A FR7534445 A FR 7534445A FR 7534445 A FR7534445 A FR 7534445A FR 2291606 B1 FR2291606 B1 FR 2291606B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7414849.A NL166818C (nl) | 1974-11-14 | 1974-11-14 | Lagedruknatriumdampontladingslamp. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2291606A1 FR2291606A1 (fr) | 1976-06-11 |
| FR2291606B1 true FR2291606B1 (https=) | 1979-07-06 |
Family
ID=19822470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7534445A Granted FR2291606A1 (fr) | 1974-11-14 | 1975-11-12 | Lampe a decharge dans la vapeur de sodium a basse pression |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3995182A (https=) |
| JP (2) | JPS5172188A (https=) |
| BE (1) | BE835515A (https=) |
| CA (1) | CA1043410A (https=) |
| DE (1) | DE2550513C3 (https=) |
| FR (1) | FR2291606A1 (https=) |
| GB (1) | GB1507217A (https=) |
| NL (1) | NL166818C (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL180464C (nl) * | 1976-10-29 | 1987-02-16 | Philips Nv | Lagedruknatriumdampontladingslamp. |
| US4080545A (en) * | 1976-12-27 | 1978-03-21 | Xerox Corporation | Sodium vapor lamp with emission aperture |
| US4678960A (en) * | 1985-08-01 | 1987-07-07 | General Electric Company | Metallic halide electric discharge lamps |
| JPH0348856U (https=) * | 1989-09-19 | 1991-05-10 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB494192A (en) * | 1937-07-13 | 1938-10-21 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Improvements in high pressure metal vapour electric discharge lamps |
| FR1199913A (fr) * | 1957-07-18 | 1959-12-17 | Philips Nv | Tube à décharge dans la vapeur de sodium, présentant la forme d'un u |
| US3225241A (en) * | 1959-07-09 | 1965-12-21 | Sylvania Electric Prod | Aperture fluorescent lamp |
| US3162785A (en) * | 1960-04-22 | 1964-12-22 | Sylvania Electric Prod | Projection lamp |
| US3174067A (en) * | 1960-07-21 | 1965-03-16 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Construction for projection lamps eliminating undesired infrared radiation |
| US3179792A (en) * | 1962-09-06 | 1965-04-20 | Weiss Harry | Fluorescent lamp |
| US3188513A (en) * | 1963-04-10 | 1965-06-08 | Gen Electric | Optical filters and lamps embodying the same |
| DE1260627B (de) * | 1965-11-13 | 1968-02-08 | Philips Nv | Natriumdampfentladungslampe |
| US3767956A (en) * | 1969-12-24 | 1973-10-23 | Xerox Corp | Aperture fluorescent lamp for copying machines |
-
1974
- 1974-11-14 NL NL7414849.A patent/NL166818C/xx not_active IP Right Cessation
-
1975
- 1975-10-29 GB GB44621/75A patent/GB1507217A/en not_active Expired
- 1975-11-11 JP JP50135620A patent/JPS5172188A/ja active Pending
- 1975-11-11 DE DE2550513A patent/DE2550513C3/de not_active Expired
- 1975-11-12 US US05/631,368 patent/US3995182A/en not_active Expired - Lifetime
- 1975-11-12 FR FR7534445A patent/FR2291606A1/fr active Granted
- 1975-11-12 BE BE161818A patent/BE835515A/xx not_active IP Right Cessation
- 1975-11-13 CA CA239,729A patent/CA1043410A/en not_active Expired
-
1980
- 1980-06-06 JP JP1980078105U patent/JPS55171963U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1507217A (en) | 1978-04-12 |
| CA1043410A (en) | 1978-11-28 |
| JPS5172188A (https=) | 1976-06-22 |
| US3995182A (en) | 1976-11-30 |
| NL166818B (nl) | 1981-04-15 |
| DE2550513A1 (de) | 1976-05-26 |
| NL7414849A (nl) | 1976-05-18 |
| JPS55171963U (https=) | 1980-12-10 |
| DE2550513C3 (de) | 1980-01-17 |
| FR2291606A1 (fr) | 1976-06-11 |
| NL166818C (nl) | 1981-09-15 |
| BE835515A (fr) | 1976-05-12 |
| DE2550513B2 (de) | 1979-05-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |