US2756159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound deadening composition
Assignee: EF Hauserman Co
•
Filing: 1951-06-05
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Granted: 1956-07-24
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Expires: 1971-06-05
Abstract
No abstract record available.
Inventors
- 👤 Fred E Kendall
- 👤 Golar Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:14
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C04B2111/00; C04B2111/00474; C04B2111/00482; E04B2001/742; Y; Y10; Y10T; Y10T428/00; Y10T428/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A NOVEL SOUND DEADENING COATING COMPOSITION COMPRISING FROM 20-35% BY WEIGHT OF AN INERT LOW DENSITY POROUS AGGREGATE, 30-60% BY WEIGHT OF 41* BAUME WATER GLASS, 2-10% BY WEIGHT (ANHYDROUS) OF SODIUM HYDROXIDE AND A WATER CONTENT SUFFICIENT TO MAKE A PLASTIC, ADHERENT, READILY APPLICABLE MASS, THE SIO2/NA20 RATIO OF SUCH COMPOSITION LYING IN THE RANGE OF FROM 1.3/1 TO 2.3/1 TO ENSURE THE RETENTION OF AT LEAST 15% AND NOT MORE THAN 40% WATER IN THE COMPOSITION WHEN AIR DRIED UNDER CONDITIONS OF NORMAL ROOM TEMPERATURE AND HUMIDITY.
Claim 2
Dependent Claim
89 words
A NOVEL SOUND DEADENING COATING COMPOSITION COMPRISING FROM 20-35% BY WEIGHT OF AN INERT LOW DENSITY POROUS AGGREGATE, 30-60% BY WEIGHT OF 41* BAUME WATER GLASS, 2-10% BY WEIGHT (ANHYDROUS) OF SODIUM HYDROXIDE AND A WATER CONTENT SUFFICIENT TO MAKE A PLASTIC, ADHERENT, READILY APPLICABLE MASS, THE SIO2/NA20 RATIO OF SUCH COMPOSITION LYING IN THE RANGE OF FROM 1.3/1 TO 2.3/1 TO ENSURE THE RETENTION OF AT LEAST 15% AND NOT MORE THAN 40% WATER IN THE COMPOSITION WHEN AIR DRIED UNDER CONDITIONS OF NORMAL ROOM TEMPERATURE AND HUMIDITY.
References Cited (Backward Citations)
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US1578813A
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US1707277A
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US2162387A
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US2239358A
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US2328644A
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US2434291A
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US2426445A
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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) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |