Combustible gas indicator
Krolopp October 27, 1
U.S. patent number D330,521 [Application Number 07/595,930] was granted by the patent office on 1992-10-27 for combustible gas indicator. This patent grant is currently assigned to J and N Associates, Inc.. Invention is credited to Rudy Krolopp.
| United States Patent | D330,521 |
| Krolopp | October 27, 1992 |
Combustible gas indicator
Claims
The ornamental design for a combustible gas indicator, as shown and described.
| Inventors: | Krolopp; Rudy (Elk Grove, IL) |
|---|---|
| Assignee: | J and N Associates, Inc.
(Wheeler, IN) |
| Appl. No.: | 07/595,930 |
| Filed: | October 11, 1990 |
| Current U.S. Class: | D10/81; D10/46; D10/52 |
| Field of Search: | ;D10/46,52,78,81 ;73/1.6,23.01,23.02,23.03,23.04-23.09,23.1,23.31,29.04,864.74 ;250/338.1,338.5 |
References Cited [Referenced By]
U.S. Patent Documents
| D238887 | February 1976 | O'Neal et al. |
| D296823 | July 1988 | Kuwa et al. |
| 4765193 | August 1988 | Holden et al. |
| 4779446 | October 1988 | Rowland |
Other References
|
Lumidor Safety Products, "Gas-Pro," advertising sheet (Aug. 1980). . "GasTech," advertising sheet (Undated). . "Enerac," advertising sheet (Undated). . "GMI," advertising sheet (Undated). . "AIM Gas Detectors," advertising sheet (Undated). . Dynamation, Inc., "CGM 947," advertising sheet (Undated). . GC Industries, "GC Industries," advertising sheet (Undated). . "Matheson TECH/Brief," advertising sheet TB-240 (Undated). . Biosystems Inc., "PhD," advertising sheet (Undated). . Bacharach, "Sentinel 4," advertising sheet (Undated). . MDA, "MSTox8600," advertising sheet (Undated). . Ion Science, "Gas Check," advertising sheet (Undated). . Compur, "Monitox," advertising sheet (Undated).. |
Primary Examiner: Holtje; Nelson C.
Assistant Examiner: Davis; Antoine D.
Attorney, Agent or Firm: Marshall, O'Toole, Gerstein, Murray & Bicknell
Description
FIG. 1 is a top, front and left side perspective view of a combustible gas indicator showing my new design;
FIG. 2 is a front elevational view;
FIG. 3 is a top plan view;
FIG. 4 is a rear elevational view;
FIG. 5 is a bottom plan view;
FIG. 6 is a left side elevational view; and,
FIG. 7 is a right side elevational view thereof.
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