US3019820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrugated tubing
Assignee: Individual
•
Filing: 1957-02-28
•
Granted: 1962-02-06
•
Expires: 1977-02-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Yowell
- 👤 Donald B Miner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:13
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/14; F16L11/15; B; B21; B21D; B21D15/00; B21D15/04; B21D15/06; B21D15/10; F16J; F16J3/00; F16J3/04; F16J3/047; F16L51/00; F16L51/02; F16L51/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2770259A
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US971838A
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US1711075A
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US1844469A
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US2187347A
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US2352038A
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GB597363A
Cited
US2685305A
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US2822194A
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US2840394A
Cited
US2843402A
Cited
US2876801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |