US3483896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite reinforced plastic pipe
Assignee: Contech Engineered Solutions LLC
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Filing: 1966-05-02
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Granted: 1969-12-16
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Expires: 1986-05-02
Abstract
No abstract record available.
Inventors
- 👤 James L Grosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:25
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/16; B; B29; B29C; B29C41/00; B29C41/02; B29C41/08; B29C41/085; B29C70/00; B29C70/02; B29C70/021; B29C70/025; B29D; B29D23/00; B29D23/001; B32; B32B; B32B23/00; B32B23/14; B32B3/00; B32B5/00; B32B5/16; B32B5/22
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) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |