US3268240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic-lined conduit
Assignee: Phillips Petroleum Co
•
Filing: 1963-10-14
•
Granted: 1966-08-23
•
Expires: 1983-10-14
Abstract
No abstract record available.
Inventors
- 👤 Robert V Gerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:53
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/001; F16L15/003; F16L15/006; F16L15/008; F16L19/00; F16L19/02; F16L19/0243; F16L23/00; F16L23/12; F16L23/125; F16L58/00; F16L58/18; F16L58/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1068068B
Cited
US1794905A
Cited
FR883048A
Cited
GB616115A
Cited
US2794658A
Cited
US2982311A
Cited
DE1049173B
Cited
US2998984A
Cited
US3120401A
Cited
US3160425A
Cited
US3192612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |