Patent FR1374721A successfully refreshed from Google Patents.
US3480036A
Expired / Lapsed
US
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Line tap valve and method for tapping into a pipeline
Assignee: Sealed Unit Parts Co Inc
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Filing: 1967-06-14
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Granted: 1969-11-25
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Expires: 1987-06-14
Abstract
No abstract record available.
Inventors
- 👤 Henry Ehrens
- 👤 Sidney Weiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:39
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/04; F16L41/06; F16L41/065; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5619
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |