Patent US860641A successfully refreshed from Google Patents.
Patent US5483339A successfully refreshed from Google Patents.
US5483339A
Expired / Lapsed
US
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Spectrophotometer and radiometric measurement apparatus
Assignee: GretagMacbeth LLC
•
Filing: 1994-05-04
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Granted: 1996-01-09
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Expires: 2014-05-04
Abstract
Abstract A handheld portable spectrophotometer is provided including keys for input of instructions by a user, an illuminator for illuminating a sample, and a spectral analyzer for separating light reflected from the sample into spectral components to produce a signal corresponding to the level of each spectral component. A processor is provided for executing the user instructions and for analyzing the signal. The results of the signal analysis are presented on a display. A power source is provided for providing power for operation of the handheld portable spectrophotometer.
Inventors
- 👤 Harold Van Aken
- 👤 Alan Kravetz
- 👤 Kenneth Garde
- 👤 William Weber
- 👤 Joseph Corrado
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:48
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/46; G01J3/02; G01J3/0202; G01J3/0205; G01J3/0218; G01J3/0264; G01J3/0272; G01J3/0283; G01J3/0286; G01J3/10; G01J3/28; G01J3/463; G01J3/50; G01J3/502; G01J3/52; G01J3/524; G01N; G01N21/00; G01N21/17; G01N21/25
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
76 words
A spectrophotometric and radiometric measurement apparatus, comprising: at least one key for input of instructions by a user; an illuminator for illuminating a sample; means for enabling and disabling operation of said illuminator in response to said instructions; a spectral analyzer for separating light reflected and emanated from said sample into spectral components and producing a signal corresponding to the level of each spectral component; and a processor for executing said instructions and analyzing said signal.
Claim 2
Dependent Claim
76 words
A spectrophotometric and radiometric measurement apparatus, comprising: at least one key for input of instructions by a user; an illuminator for illuminating a sample; means for enabling and disabling operation of said illuminator in response to said instructions; a spectral analyzer for separating light reflected and emanated from said sample into spectral components and producing a signal corresponding to the level of each spectral component; and a processor for executing said instructions and analyzing said signal.
Claim 3
Dependent Claim
24 words
A spectrophotometric and radiometric measurement apparatus according to claim 1 wherein the illuminator is within a housing non-coextensive with a housing containing the processor.
Claim 4
Dependent Claim
15 words
A spectrophotometric and radiometric measurement apparatus according to claim 1, further comprising a replaceable memory.
Claim 5
Dependent Claim
19 words
A spectrophotometric and radiometric measurement apparatus in accordance with claim 3, wherein said replaceable memory contains color standards data.
Claim 6
Dependent Claim
19 words
A spectrophotometric and radiometric measurement apparatus in accordance with claim 3, wherein said replaceable memory contains application program instructions.
Claim 7
Dependent Claim
25 words
A spectrophotometric and radiometric measurement apparatus in accordance with claim 1, further including an adapter to allow the measurement apparatus to communicate with external devices.
Claim 8
Dependent Claim
25 words
A spectrophotometric and radiometric measurement apparatus in accordance with claim 1, wherein said processor applies user-selected color difference formulas in the analysis of said signal.
Claim 9
Dependent Claim
28 words
A spectrophotometric and radiometric measurement apparatus in accordance with claim 1, wherein said processor provides a facility to compare the results of said analysis with color standards data.
Claim 10
Dependent Claim
28 words
A spectrophotometric and radiometric measurement apparatus in accordance with claim 1, wherein said processor includes a facility for the user to manipulate data stored in the measurement apparatus.
Claim 11
Dependent Claim
22 words
A spectrophotometric and radiometric measurement apparatus according to claim 1, further comprising a display for displaying the results of said signal analysis.
Claim 12
Dependent Claim
25 words
A spectrophotometric and radiometric measurement apparatus in according to claim 1, further comprising a power source for providing power for operation of said measurement apparatus.
Claim 13
Dependent Claim
19 words
A spectrophotometric and radiometric measurement apparatus according to claim 1, further comprising means for transmissive measurement of said sample.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-01-08 | 1999-07-10 | 2000-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-08 | 2003-07-10 | 2004-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-08 | 2007-07-10 | 2008-01-09 | $7700.00 | Window Closed / Lapsed |