US2626864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building board of fiber and asphalt coated perlite
Assignee: GREAT LAKES CARBON Corp
•
Filing: 1947-12-31
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Granted: 1953-01-27
•
Expires: 1967-12-31
Abstract
No abstract record available.
Inventors
- 👤 Miscall Jack
- 👤 Chester E Rahr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:22
CPC Classifications
C; C08; C08J; C08J9/00; C04; C04B; C04B26/00; C04B26/02; C04B26/26; D; D21; D21J; D21J1/00; D21J1/08; C08J2395/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A CONSOLIDATED ASPHALT-EXPANDED PERLITE COMPOSITION USEFUL AS A BUILDING BOARD CONSISTING ESSENTIALLY OF FIBERS AND ASPHALT-COATED ESSENTIALLY CELLULAR EXPANDED PERLITE, SAID FIBERS COMPRISING 90-25% BY WEIGHT OF THE COMPOSITION AND SAID COATED PERLITE COMPRISING 10-75% BY WEIGHT OF THE COMPOSITION, SAID PERLITE BEING LESS THAN 20 MESH SIZE, HAVING A BULK DENSITY OF 1-20 POUNDS PER CUBIC FOOT AND BEING COATED WITH 1-50 POUNDS OF ASPHALT PER CUBIC FOOT OF PERLITE SAID ASPHALT MELTING AT 100-250* F., SAID ASPHALTCOATED PERLITE BEING PRESENT AS ESSENTIALLY DISCRETE PARTICLES, THE LENGTH OF SAID FIBERS BEING NOT SUBSTANTIALLY GREATER THAN 20 MILLIMETERS, THE AVERAGE LENGTH OF SAID FIBERS BEING SUBSTANTIALLY GREATER THAN THE AVERAGE DIAMETER OF THE PERLITE PARTICLES.
Claim 2
Dependent Claim
115 words
A CONSOLIDATED ASPHALT-EXPANDED PERLITE COMPOSITION USEFUL AS A BUILDING BOARD CONSISTING ESSENTIALLY OF FIBERS AND ASPHALT-COATED ESSENTIALLY CELLULAR EXPANDED PERLITE, SAID FIBERS COMPRISING 90-25% BY WEIGHT OF THE COMPOSITION AND SAID COATED PERLITE COMPRISING 10-75% BY WEIGHT OF THE COMPOSITION, SAID PERLITE BEING LESS THAN 20 MESH SIZE, HAVING A BULK DENSITY OF 1-20 POUNDS PER CUBIC FOOT AND BEING COATED WITH 1-50 POUNDS OF ASPHALT PER CUBIC FOOT OF PERLITE SAID ASPHALT MELTING AT 100-250* F., SAID ASPHALTCOATED PERLITE BEING PRESENT AS ESSENTIALLY DISCRETE PARTICLES, THE LENGTH OF SAID FIBERS BEING NOT SUBSTANTIALLY GREATER THAN 20 MILLIMETERS, THE AVERAGE LENGTH OF SAID FIBERS BEING SUBSTANTIALLY GREATER THAN THE AVERAGE DIAMETER OF THE PERLITE PARTICLES.
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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) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |