US3874995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making aluminized paper
Assignee: United States Department of the Army
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Filing: 1973-06-18
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Granted: 1975-04-01
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Expires: 1993-06-18
Abstract
Abstract A method of forming an aluminized test paper is disclosed where blotting paper and aluminum powder are slurried together and then molded to form the test paper which is subsequently dried.
Inventors
- 👤 Howard L Stroterhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:18
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/22
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
A METHOD OF PRODUCING ALUMINIZED PAPER FOR USE IN AN APPARATUS TO DETECT ENVIRONMENT TOXIC AGENT CONTAMINATION COMPRISING THE STEPS OF: MIXING THE FOLLOWING INGREDIENTS IN THE APPROXIMATE RATIO OF 3.0 GRAMS BLOTTING PAPER, 9.0 GRAMS ALUMINUM POWDER, AND 2,000 ML OF WATER AT HIGH SPEED IN A BLENDER FOR APPROXIMATELY 3 MINUTES TO SEPARATE THE FIBERS AND PRODUCE A SLURRY, POURING THE SLURRY INTO A PAPER MOLD, DRAINING THE WATER FROM THE SLURRY WITHIN THE PAPER MOLD TO PRODUCE AN ALUMINUM PAPER MAT, REMOVING THE ALUMINUM PAPER MAT FROM THE PAPER MOLD, DRYING THE PAPER MAT IN AN OVEN AT APPROXIMATELY 90*C FOR APPROXIMATELY 2 HOURS, AND CUTTING THE PAPER MAT INTO PREDETERMINED SIZES TO USE IN THE APPARATUS.
Claim 2
Independent Claim
120 words
A METHOD OF PRODUCING ALUMINIZED PAPER FOR USE IN AN APPARATUS TO DETECT ENVIRONMENT TOXIC AGENT CONTAMINATION COMPRISING THE STEPS OF: MIXING THE FOLLOWING INGREDIENTS IN THE APPROXIMATE RATIO OF 3.0 GRAMS BLOTTING PAPER, 9.0 GRAMS ALUMINUM POWDER, AND 2,000 ML OF WATER AT HIGH SPEED IN A BLENDER FOR APPROXIMATELY 3 MINUTES TO SEPARATE THE FIBERS AND PRODUCE A SLURRY, POURING THE SLURRY INTO A PAPER MOLD, DRAINING THE WATER FROM THE SLURRY WITHIN THE PAPER MOLD TO PRODUCE AN ALUMINUM PAPER MAT, REMOVING THE ALUMINUM PAPER MAT FROM THE PAPER MOLD, DRYING THE PAPER MAT IN AN OVEN AT APPROXIMATELY 90*C FOR APPROXIMATELY 2 HOURS, AND CUTTING THE PAPER MAT INTO PREDETERMINED SIZES TO USE IN THE APPARATUS.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein the aluminum pOwder is 325 mesh.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |