Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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US Patent 6614527 - Spectral bandwidth calibration of an optical spectrum analyzer
US Patent Issued on September 2, 2003
Estimated Patent Expiration Date:
November 1, 2021Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
November 1, 2021Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractIn an optical spectrum analyzer, the respective wavelength bandwidths of the optical spectrum analyzer are determined at the wavelengths of the reference lines and used as calibration data for determining measurement tolerances by means of reference lines of known wavelength and known wavelength bandwidths from the known wavelength bandwidths of the reference lines and from the wavelength bandwidths of the reference lines measured with the optical spectrum analyzer | InventorsAssigneeApplicationNo. 10/000635 filed on 11/01/2001US Classes:356/326, Utilizing a spectrometer250/252.1, CALIBRATION OR STANDARDIZATION METHODS702/85CALIBRATION OR CORRECTION SYSTEMField of Search356/326Utilizing a spectrometerExaminersPrimary: Evans, F. L.Assistant: Geisel, Kara Attorney, Agent or FirmInternational ClassG01J 3/28 (20060101)Foreign Application Priority Data2000-11-02 EP |
