US3210095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic lined conduit and method of construction
Assignee: Phillips Petroleum Co
•
Filing: 1962-03-02
•
Granted: 1965-10-05
•
Expires: 1982-03-02
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:12
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/04; F16L58/10; F16L58/1009; F16L58/1027
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |