Patent US2877501A successfully refreshed from Google Patents.
US2877501A
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Glass-reinforced thermoplastic injection molding compound and injection-molding process employing it
Assignee: Fiberfil Corp
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Filing: 1952-12-24
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Granted: 1959-03-17
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Expires: 1972-12-24
Abstract
No abstract record available.
Inventors
- 👤 Bradt Rexford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:34
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/12; B29B9/14; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/12; B29C70/14; B29C45/00; Y; Y10; Y10S; Y10S264/00; Y10S264/53; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2927; Y10T428/2933; Y10T428/2964; Y10T428/2971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN THE PROCESS OF INJECTION MOLDING, THE STEP OF FORCING INTO A MOLD AN INJECTION MOLDING COMPOUND COMPRISING ELONGATED GRANULES HAVING THEREIN FROM ABOUT 15-60% BY WEIGHT OF THE GRANULE OF GLASS FILAMENTS EXTENDING GENERALLY PARALLEL TO EACH OTHER LONGITUDINALLY OF THE GRANULE, SAID FILAMENTS BEING COATED WITH A THERMOPLASTIC MOLDING COMPOSITION.
Claim 2
Dependent Claim
52 words
IN THE PROCESS OF INJECTION MOLDING, THE STEP OF FORCING INTO A MOLD AN INJECTION MOLDING COMPOUND COMPRISING ELONGATED GRANULES HAVING THEREIN FROM ABOUT 15-60% BY WEIGHT OF THE GRANULE OF GLASS FILAMENTS EXTENDING GENERALLY PARALLEL TO EACH OTHER LONGITUDINALLY OF THE GRANULE, SAID FILAMENTS BEING COATED WITH A THERMOPLASTIC MOLDING COMPOSITION.
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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) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |