US3049754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for processing heat-softenable materials
Assignee: Owens Corning
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Filing: 1959-12-29
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Granted: 1962-08-21
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Expires: 1979-12-29
Abstract
No abstract record available.
Inventors
- 👤 Philip J Frickert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:32
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/081; C03B37/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE744973C
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US2369506A
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DE938745C
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US2495956A
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FR1008738A
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US2657428A
Cited
US2635389A
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US2780890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |