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Patent US3056846A successfully refreshed from Google Patents.
US3056846A
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Method and apparatus for heat conditioning and feeding heat-softenable materials
Assignee: Owens Corning
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Filing: 1958-08-13
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Granted: 1962-10-02
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Expires: 1978-08-13
Abstract
No abstract record available.
Inventors
- 👤 Hellmut I Glaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:07
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/09; C03B37/091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2161916A
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US2159361A
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US2244267A
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US2360373A
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US2489508A
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US2649487A
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US2692296A
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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) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |