GB1295538A - - Google Patents
Info
- Publication number
- GB1295538A GB1295538A GB1295538DA GB1295538A GB 1295538 A GB1295538 A GB 1295538A GB 1295538D A GB1295538D A GB 1295538DA GB 1295538 A GB1295538 A GB 1295538A
- Authority
- GB
- United Kingdom
- Prior art keywords
- april
- filament
- lamp
- filaments
- heading
- Prior art date
- 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
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
- H01K7/04—Lamps for purposes other than general lighting for indicating
Landscapes
- Illuminated Signs And Luminous Advertising (AREA)
- Resistance Heating (AREA)
- Discharge Lamp (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
1295538 Incandescent filament display lamps RCA CORPORATION 29 April 1970 [29 April 1969] 20612/70 Heading H1F An alpha-numeric display lamp includes a pair of filaments 52, 54 arranged in an X configuration to represent a decimal point or full stop. The lamp is preferably of the filament type disclosed in Specification 1,295,537 but may alternatively employ electroluminescent layers or glow discharge electrodes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82021669A | 1969-04-29 | 1969-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1295538A true GB1295538A (en) | 1972-11-08 |
Family
ID=25230208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1295538D Expired GB1295538A (en) | 1969-04-29 | 1970-04-29 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3564325A (en) |
| BE (1) | BE748177A (en) |
| CH (1) | CH523565A (en) |
| DE (1) | DE2021077A1 (en) |
| ES (1) | ES378037A1 (en) |
| FR (1) | FR2046549A5 (en) |
| GB (1) | GB1295538A (en) |
| NL (1) | NL7006197A (en) |
| SE (1) | SE362164B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1374580A (en) * | 1970-11-24 | 1974-11-20 | Smiths Industries Ltd | Electrically operated display devices |
| US3673652A (en) * | 1970-05-26 | 1972-07-04 | Rca Corp | Filamentary display devices |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3358176A (en) * | 1965-07-19 | 1967-12-12 | Burroughs Corp | Multiple cathode indicator tube having no obstruction in the form of support disks |
| US3416020A (en) * | 1966-02-14 | 1968-12-10 | Los Angeles Miniature Products | Filament display device including a rigid, light-absorbing, support panel |
-
1969
- 1969-04-29 US US820216A patent/US3564325A/en not_active Expired - Lifetime
-
1970
- 1970-03-27 BE BE748177D patent/BE748177A/en unknown
- 1970-03-30 ES ES378037A patent/ES378037A1/en not_active Expired
- 1970-04-27 FR FR7015273A patent/FR2046549A5/fr not_active Expired
- 1970-04-28 NL NL7006197A patent/NL7006197A/xx unknown
- 1970-04-28 SE SE05857/70A patent/SE362164B/xx unknown
- 1970-04-28 CH CH637970A patent/CH523565A/en not_active IP Right Cessation
- 1970-04-29 GB GB1295538D patent/GB1295538A/en not_active Expired
- 1970-04-29 DE DE19702021077 patent/DE2021077A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BE748177A (en) | 1970-08-31 |
| SE362164B (en) | 1973-11-26 |
| FR2046549A5 (en) | 1971-03-05 |
| CH523565A (en) | 1972-05-31 |
| NL7006197A (en) | 1970-11-02 |
| US3564325A (en) | 1971-02-16 |
| ES378037A1 (en) | 1973-03-01 |
| DE2021077A1 (en) | 1971-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |