US3000028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipeline cleaning device
Assignee: Individual
•
Filing: 1958-06-03
•
Granted: 1961-09-19
•
Expires: 1978-06-03
Abstract
No abstract record available.
Inventors
- 👤 John C Buie
- 👤 Reginald M Rault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:37
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/26; F16L55/46; F16K; F16K1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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AT76084B
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US1205586A
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US2312244A
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US2493504A
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US2796878A
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US2790500A
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US2915422A
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US2755742A
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US2818592A
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US2893028A
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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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |