GB2289707B - Thermochromic indicator device - Google Patents

Thermochromic indicator device

Info

Publication number
GB2289707B
GB2289707B GB9409971A GB9409971A GB2289707B GB 2289707 B GB2289707 B GB 2289707B GB 9409971 A GB9409971 A GB 9409971A GB 9409971 A GB9409971 A GB 9409971A GB 2289707 B GB2289707 B GB 2289707B
Authority
GB
United Kingdom
Prior art keywords
indicator device
thermochromic indicator
thermochromic
indicator
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 - Fee Related
Application number
GB9409971A
Other versions
GB2289707A (en
GB9409971D0 (en
Inventor
Michael Alan Ward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9409971A priority Critical patent/GB2289707B/en
Publication of GB9409971D0 publication Critical patent/GB9409971D0/en
Publication of GB2289707A publication Critical patent/GB2289707A/en
Application granted granted Critical
Publication of GB2289707B publication Critical patent/GB2289707B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/40—Arrangements responsive to adverse atmospheric conditions, e.g. to signal icy roads or to automatically illuminate in fog; Arrangements characterised by heating or drying means

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
GB9409971A 1994-05-18 1994-05-18 Thermochromic indicator device Expired - Fee Related GB2289707B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9409971A GB2289707B (en) 1994-05-18 1994-05-18 Thermochromic indicator device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9409971A GB2289707B (en) 1994-05-18 1994-05-18 Thermochromic indicator device

Publications (3)

Publication Number Publication Date
GB9409971D0 GB9409971D0 (en) 1994-07-06
GB2289707A GB2289707A (en) 1995-11-29
GB2289707B true GB2289707B (en) 1998-01-28

Family

ID=10755356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9409971A Expired - Fee Related GB2289707B (en) 1994-05-18 1994-05-18 Thermochromic indicator device

Country Status (1)

Country Link
GB (1) GB2289707B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819817C2 (en) * 1998-05-04 2001-02-08 Robert Brehm Ice warner
GB0106253D0 (en) * 2001-03-14 2001-05-02 Sorbie Mitchell Temperature sensitive signs
GB0519924D0 (en) * 2005-09-30 2005-11-09 Craig Angus "Hazard warning sign and method"
GB2443876A (en) * 2006-11-15 2008-05-21 Alan John Haley Black ice warning sticker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554189A (en) * 1976-05-20 1979-10-17 Parker Research Robert High temperature non-crystallizing cholesteric liquid crystal compositions
GB2083244A (en) * 1980-08-27 1982-03-17 Mcdonnell Damien Gerard Temperature-sensitive cat's eyes
GB2189919A (en) * 1986-04-24 1987-11-04 Glyn Martin Dominy Temperature sensitive reflective marker or indicator
GB2265630A (en) * 1992-04-04 1993-10-06 Stephen Long Temperature indicating road markings

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554189A (en) * 1976-05-20 1979-10-17 Parker Research Robert High temperature non-crystallizing cholesteric liquid crystal compositions
GB2083244A (en) * 1980-08-27 1982-03-17 Mcdonnell Damien Gerard Temperature-sensitive cat's eyes
GB2189919A (en) * 1986-04-24 1987-11-04 Glyn Martin Dominy Temperature sensitive reflective marker or indicator
GB2265630A (en) * 1992-04-04 1993-10-06 Stephen Long Temperature indicating road markings

Also Published As

Publication number Publication date
GB2289707A (en) 1995-11-29
GB9409971D0 (en) 1994-07-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060518