US3183143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural shapes of reinforced sulfur and method of producing same
Assignee: Owens Corning
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Filing: 1961-05-15
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Granted: 1965-05-11
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Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 Ransom S Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:47
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/36; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
42 words
A RIGID, COMPOSITE BODY HAVING A HIGH MODULUS OF FRACTURE, AND COMPRISING AMORPHOUS SULFUR AND LENGTHS OF CONTINUOUS GLASS STRANDS WHEREIN THE SULFUR IS STABILIZED IN ITS ALLOTROPIC FORM AND THEREBY HINDERED FROM REVERSION TO ITS CRYSTALLINE STATE BY THE GLASS STRANDS.
Claim 2
Dependent Claim
42 words
A RIGID, COMPOSITE BODY HAVING A HIGH MODULUS OF FRACTURE, AND COMPRISING AMORPHOUS SULFUR AND LENGTHS OF CONTINUOUS GLASS STRANDS WHEREIN THE SULFUR IS STABILIZED IN ITS ALLOTROPIC FORM AND THEREBY HINDERED FROM REVERSION TO ITS CRYSTALLINE STATE BY THE GLASS STRANDS.
Claim 3
Dependent Claim
92 words
IN A METHOD OF PRODUCING RIGID SHAPES OF REINFORCED, AMORPHOUS SULFUR HAVING A HIGH MODULUS OF FRACTURE, THE STEPS OF ADMIXING PARTICLES OF ELEMENTAL SULFUR WITH CHOPPED GLASS STRAND IN A RATIO OF ABOUT 5% BY WEIGHT OF GLASS TO ABOUT 95% BY WEIGHT OF SULFUR, HEATING THE ADMIXTURE TO MELT THE SULFUR AND WET THE FIBERS IN BONDING RELATION, COOLING THE BONDED MASS, AND FORMING A SHAPE FROM SAID COOLED AND BONDED MASS, WHEREBY THE SULFUR IS STABILIZED IN ITS ALLOTROPIC FORM AND THEREBY HINDERED FROM REVERSION TO ITS CRYSTALLINE STATE.
Claim 4
Dependent Claim
92 words
IN A METHOD OF PRODUCING RIGID SHAPES OF REINFORCED, AMORPHOUS SULFUR HAVING A HIGH MODULUS OF FRACTURE, THE STEPS OF ADMIXING PARTICLES OF ELEMENTAL SULFUR WITH CHOPPED GLASS STRAND IN A RATIO OF ABOUT 5% BY WEIGHT OF GLASS TO ABOUT 95% BY WEIGHT OF SULFUR, HEATING THE ADMIXTURE TO MELT THE SULFUR AND WET THE FIBERS IN BONDING RELATION, COOLING THE BONDED MASS, AND FORMING A SHAPE FROM SAID COOLED AND BONDED MASS, WHEREBY THE SULFUR IS STABILIZED IN ITS ALLOTROPIC FORM AND THEREBY HINDERED FROM REVERSION TO ITS CRYSTALLINE STATE.
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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) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |