US2796931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaged insulating units and method and apparatus of making same
Assignee: Owens Corning
•
Filing: 1953-07-01
•
Granted: 1957-06-25
•
Expires: 1973-07-01
Abstract
No abstract record available.
Inventors
- 👤 Kuenn William Whitney
- 👤 Elmer F Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:29
CPC Classifications
D; D21; D21G; D21G9/00; B; B26; B26D; B26D1/00; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0237; Y10T83/0244; Y10T83/465; Y10T83/4728; Y10T83/4766; Y10T83/4795; Y10T83/768; Y10T83/7684; Y10T83/7709; Y10T83/7713; Y10T83/869; Y10T83/8725
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US366104A
Cited
US442878A
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US959966A
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US1678458A
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US1808500A
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US1800444A
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US1895852A
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US2206112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |