Patent US3419288A successfully refreshed from Google Patents.
US3419288A
Expired / Lapsed
US
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Stabilizer for polymer composition pipe
Assignee: Individual
•
Filing: 1967-03-27
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Granted: 1968-12-31
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Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Duane D Logsdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:28
CPC Classifications
E; E03; E03D; E03D11/00; E03D11/13; E03D11/16
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |