US3380259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of reinforced composite concrete pipe-line constructions
Assignee: Individual
•
Filing: 1965-10-24
•
Granted: 1968-04-30
•
Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Rubenstein David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:29
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/14; F16L1/00; F16L1/024; F16L1/028; F16L1/038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1153599A
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DE654982C
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US2209726A
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US2605202A
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US2718684A
Cited
US3089213A
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US3145444A
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US3132416A
Cited
US3251332A
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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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |