US3404905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smooth pipe connection especially for pipes of synthetic material
Assignee: Georg Fischer AG
•
Filing: 1966-07-11
•
Granted: 1968-10-08
•
Expires: 1986-07-11
Abstract
No abstract record available.
Inventors
- 👤 Albrecht Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:27
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/06; F16L19/065; F16L33/00; F16L33/22; F16L33/222; F16L33/223; F16L33/224; F16L47/00; F16L47/04; F16L47/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA610455A
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US2021745A
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US2230115A
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CH229917A
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GB551006A
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US2453024A
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DE1161095B
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US3116945A
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US3140107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |