GB2257675B - Distance indicator - Google Patents

Distance indicator

Info

Publication number
GB2257675B
GB2257675B GB9215290A GB9215290A GB2257675B GB 2257675 B GB2257675 B GB 2257675B GB 9215290 A GB9215290 A GB 9215290A GB 9215290 A GB9215290 A GB 9215290A GB 2257675 B GB2257675 B GB 2257675B
Authority
GB
United Kingdom
Prior art keywords
distance indicator
indicator
distance
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
GB9215290A
Other versions
GB2257675A (en
GB9215290D0 (en
Inventor
Michael Westmoreland
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
Priority claimed from GB9001154A external-priority patent/GB2240075A/en
Application filed by Individual filed Critical Individual
Priority to GB9215290A priority Critical patent/GB2257675B/en
Publication of GB9215290D0 publication Critical patent/GB9215290D0/en
Publication of GB2257675A publication Critical patent/GB2257675A/en
Application granted granted Critical
Publication of GB2257675B publication Critical patent/GB2257675B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
GB9215290A 1990-01-18 1992-07-17 Distance indicator Expired - Fee Related GB2257675B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9215290A GB2257675B (en) 1990-01-18 1992-07-17 Distance indicator

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9001154A GB2240075A (en) 1990-01-18 1990-01-18 Distance indicator for motor vehicles.
PCT/GB1991/000076 WO1991010878A1 (en) 1990-01-18 1991-01-18 Distance indicator
GB9215290A GB2257675B (en) 1990-01-18 1992-07-17 Distance indicator

Publications (3)

Publication Number Publication Date
GB9215290D0 GB9215290D0 (en) 1992-10-21
GB2257675A GB2257675A (en) 1993-01-20
GB2257675B true GB2257675B (en) 1993-12-22

Family

ID=26296519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9215290A Expired - Fee Related GB2257675B (en) 1990-01-18 1992-07-17 Distance indicator

Country Status (1)

Country Link
GB (1) GB2257675B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603929A (en) * 1969-09-17 1971-09-07 Thomas T Drysdale Distance measuring device
GB1355041A (en) * 1970-02-24 1974-06-05 Nat Res Dev Vehicle station keeping device
DE2837483A1 (en) * 1978-08-28 1980-03-20 Fritz Ing Grad Ott Focus meter indicating automobile stopping distance - uses light reflected from tachometer-coupled mirror as siting point

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603929A (en) * 1969-09-17 1971-09-07 Thomas T Drysdale Distance measuring device
GB1355041A (en) * 1970-02-24 1974-06-05 Nat Res Dev Vehicle station keeping device
DE2837483A1 (en) * 1978-08-28 1980-03-20 Fritz Ing Grad Ott Focus meter indicating automobile stopping distance - uses light reflected from tachometer-coupled mirror as siting point

Also Published As

Publication number Publication date
GB2257675A (en) 1993-01-20
GB9215290D0 (en) 1992-10-21

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Legal Events

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