Patent US3048640A successfully refreshed from Google Patents.
US3048640A
Expired / Lapsed
US
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Method and apparatus for melting and feeding heat-softenable materials
Assignee: Owens Corning
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Filing: 1958-11-17
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Granted: 1962-08-07
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Expires: 1978-11-17
Abstract
No abstract record available.
Inventors
- 👤 Hellmut I Glaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:16
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/2236; G05D23/224; C; C03; C03B; C03B37/00; C03B37/08; C03B37/081; C03B37/09; C03B37/091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2485851A
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US2613443A
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US2565136A
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US2645749A
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US2737807A
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US2877495A
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US2692296A
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US2794058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |