US3495627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming fiber glass pipe with integral joint thread
Assignee: Koch Industries Inc
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Filing: 1968-09-30
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Granted: 1970-02-17
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Expires: 1988-09-30
Abstract
No abstract record available.
Inventors
- 👤 William H Pierpont Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:32
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/8008; B29C53/805; B29C53/56; B29C53/58; B29C53/583; B29C53/585; B29C70/00; B29C70/68; B29C70/86; F; F16; F16L; F16L47/00; F16L47/16; F16L9/00; F16L9/16; B29K; B29K2309/00; B29K2309/08
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) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |