Patent US2950702A successfully refreshed from Google Patents.
US2950702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe sealing device
Assignee: Individual
•
Filing: 1955-05-23
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Granted: 1960-08-30
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Expires: 1975-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Eli K Ferguson
- 👤 Bill A Kronmiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:43
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/162; F16L55/1645; Y; Y10; Y10S; Y10S264/00; Y10S264/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1888961A
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US907724A
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US1631265A
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US1788706A
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US1796338A
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US2038160A
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US2321658A
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US2338266A
Cited
US2364911A
Cited
US2482925A
Cited
US2445645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |