Patent US2598042A successfully refreshed from Google Patents.
Patent US3409927A successfully refreshed from Google Patents.
US3409927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scouring composition board
Assignee: OI Glass Inc
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Filing: 1965-10-23
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Granted: 1968-11-12
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Shibley A Hider
- 👤 Klahr D Loudenslagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:57
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/049; A; A47; A47L; A47L17/00; A47L17/04; A47L17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A SCOURING COMPOSITION BOARD WHICH COMPRISES A PULP-THERMOPLASTIC BOARD AND A FIBROUS LAYER WHEREIN THE PULP-THERMOPLASTIC BOARD, HAVING A DISCRETE FIBROUS WEB, IS PRODUCED BY THE AGITATION OF A SLURRY FOR A PERIOD OF TIME SUFFICIENT TO CAUSE FIBRILLATION, SAID FIBRILLATION BEING SUFFICIENT TO DECREASE THE TAPPI FREENESS OF SAID PULP ACCORDING TO TAPPI TEST T 227 M-58 BY AT LEAST ABOUT 25 ML. TO A FINAL VALUE OF FROM ABOUT 300 ML. TO ABOUT 600 ML., WHEREIN THE SLURRY COMPRISES FROM ABOUT 0.01 TO ABOUT 2 WEIGHT PERCENT OF A COMPOSITION HAVING INTERMINGLED THEREIN FROM ABOUT 20 TO ABOUT 90 WEIGHT PERCENT OF A PARTICULATE THERMOPLASTIC, WHICH WILL PASS THROUGH A 40-MESH SCREEN AND BE RETAINED BY A 300-MESH SCREEN AND FROM ABOUT 80 TO ABOUT 10 WEIGHT PERCENT OF A FIBROUS CELLULOSE MATERIAL, THE BALANCE OF THE SLURRY BEING SLURRY MEDIUM, AND DRAINING THE RESULTING MIXTURE; WHEREIN THE FIBROUS LAYER IS STEEL WOOL, BRASS WOOL, COPPER WOOL, ALUMINUM WOOL OR GLASS WOOL AND IS BONDED TO THE PULP-THERMOPLASTIC BOARD.
Claim 2
Dependent Claim
171 words
A SCOURING COMPOSITION BOARD WHICH COMPRISES A PULP-THERMOPLASTIC BOARD AND A FIBROUS LAYER WHEREIN THE PULP-THERMOPLASTIC BOARD, HAVING A DISCRETE FIBROUS WEB, IS PRODUCED BY THE AGITATION OF A SLURRY FOR A PERIOD OF TIME SUFFICIENT TO CAUSE FIBRILLATION, SAID FIBRILLATION BEING SUFFICIENT TO DECREASE THE TAPPI FREENESS OF SAID PULP ACCORDING TO TAPPI TEST T 227 M-58 BY AT LEAST ABOUT 25 ML. TO A FINAL VALUE OF FROM ABOUT 300 ML. TO ABOUT 600 ML., WHEREIN THE SLURRY COMPRISES FROM ABOUT 0.01 TO ABOUT 2 WEIGHT PERCENT OF A COMPOSITION HAVING INTERMINGLED THEREIN FROM ABOUT 20 TO ABOUT 90 WEIGHT PERCENT OF A PARTICULATE THERMOPLASTIC, WHICH WILL PASS THROUGH A 40-MESH SCREEN AND BE RETAINED BY A 300-MESH SCREEN AND FROM ABOUT 80 TO ABOUT 10 WEIGHT PERCENT OF A FIBROUS CELLULOSE MATERIAL, THE BALANCE OF THE SLURRY BEING SLURRY MEDIUM, AND DRAINING THE RESULTING MIXTURE; WHEREIN THE FIBROUS LAYER IS STEEL WOOL, BRASS WOOL, COPPER WOOL, ALUMINUM WOOL OR GLASS WOOL AND IS BONDED TO THE PULP-THERMOPLASTIC BOARD.
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |