US2980451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Threaded pipe joint having an extrudable generally non-resilient sealing means
Assignee: ATLAS PIPE Inc
•
Filing: 1957-04-17
•
Granted: 1961-04-18
•
Expires: 1977-04-17
Abstract
No abstract record available.
Inventors
- 👤 William B Taylor
- 👤 Wilber H Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:48
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/001; E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; E21B17/0423; F16L15/04; Y; Y10; Y10S; Y10S285/00; Y10S285/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US126553A
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US2110127A
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US2087185A
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US2131839A
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GB516777A
Cited
US2246436A
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US2380690A
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US2508306A
Cited
US2553340A
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US2631871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |