US3175807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for preparing a fiber-reinforced molding composition
Assignee: Johns Manville Corp
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Filing: 1961-02-28
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Granted: 1965-03-30
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Expires: 1981-02-28
Abstract
No abstract record available.
Inventors
- 👤 Gouveia A Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:40
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/80; B29B7/88; B29B7/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE MOTHOD OF FORMING A MOLDING COMPOSITION FOR MOLDING FIBER REINFORCED PRODUCTS, WHICH COMPRISES IN COMBINATION: PROPELLING A FLUID STREAM CONTAINING FIBERS IN FLUFFY CONDITION DIRECTLY TO THE SURFACE OF A BATCH OF MOLDING SOLUTION CONFINED IN A CHAMBER TO FORM AN ADMIXTURE OF FIBERS AND MOLDING SOLUTION, AND SUBJECTING SAID ADMIXTURE INTERNAL MECHANICAL AGITATION TO FORM A SUBSTANTIALLY HOMOGENEOUS MASS.
Claim 2
Dependent Claim
61 words
THE MOTHOD OF FORMING A MOLDING COMPOSITION FOR MOLDING FIBER REINFORCED PRODUCTS, WHICH COMPRISES IN COMBINATION: PROPELLING A FLUID STREAM CONTAINING FIBERS IN FLUFFY CONDITION DIRECTLY TO THE SURFACE OF A BATCH OF MOLDING SOLUTION CONFINED IN A CHAMBER TO FORM AN ADMIXTURE OF FIBERS AND MOLDING SOLUTION, AND SUBJECTING SAID ADMIXTURE INTERNAL MECHANICAL AGITATION TO FORM A SUBSTANTIALLY HOMOGENEOUS MASS.
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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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |