US3497413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making a tubular body of fibrous glass
Assignee: Owens Corning
•
Filing: 1967-12-21
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Granted: 1970-02-24
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Expires: 1987-12-21
Abstract
No abstract record available.
Inventors
- 👤 William L Ullman
- 👤 James C Baxter
- 👤 Arthur J Pearson
- 👤 Robert E Davis
- 👤 William B Hullhorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:10
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/10; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; Y; Y10; Y10T; Y10T156/00; Y10T156/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |