Patent US3305332A successfully refreshed from Google Patents.
US3305332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeder for production of fibers of heatsoftenable materials
Assignee: Owens Corning
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Filing: 1962-12-03
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Granted: 1967-02-21
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Cletis L Roberson
- 👤 Nelson J Leedy
- 👤 James D Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:04
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/085; C03B37/081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A FEEDER FOR FORMATION OF FIBERS OF HEAT-SOFTENABLE MATERIAL COMPRISING A CONTAINER PORTION FOR SUCH MATERIAL, MEANS FOR METERING AT A UNIFORM RATE A SUPPLY OF SAID MATERIAL IN SOLID FORM TO SAID FEEDER, MEANS FOR HEATING SAID FEEDER TO MELT SAID SOLID MATERIAL INTO A MOLTEN POOL THEREOF WITHIN SAID CONTAINER PORTION, SAID FEEDER HAVING ORIFICES AT THE BOTTOM OF SAID CONTAINER PORTION THROUGH WHICH STREAMS OF SAID MOLTEN MATERIAL FLOW FOR ATTENUATION INTO FIBERS, LEVEL CONTROLS ASSOCIATED WITH SAID FEEDER FOR
Claim 2
Dependent Claim
83 words
A FEEDER FOR FORMATION OF FIBERS OF HEAT-SOFTENABLE MATERIAL COMPRISING A CONTAINER PORTION FOR SUCH MATERIAL, MEANS FOR METERING AT A UNIFORM RATE A SUPPLY OF SAID MATERIAL IN SOLID FORM TO SAID FEEDER, MEANS FOR HEATING SAID FEEDER TO MELT SAID SOLID MATERIAL INTO A MOLTEN POOL THEREOF WITHIN SAID CONTAINER PORTION, SAID FEEDER HAVING ORIFICES AT THE BOTTOM OF SAID CONTAINER PORTION THROUGH WHICH STREAMS OF SAID MOLTEN MATERIAL FLOW FOR ATTENUATION INTO FIBERS, LEVEL CONTROLS ASSOCIATED WITH SAID FEEDER FOR
References Cited (Backward Citations)
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US3012373A
Cited
US3028442A
Cited
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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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |