Patent US2829429A successfully refreshed from Google Patents.
US2829429A
Expired / Lapsed
US
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Tool for plugging high pressure pipes, etc.
Assignee: Mueller Co
•
Filing: 1951-08-22
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Granted: 1958-04-08
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Expires: 1971-08-22
Abstract
No abstract record available.
Inventors
- 👤 Frank H Mueller
- 👤 John J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:49
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L41/00; F16L41/08; F16L41/16; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552; Y10T29/53796; Y10T29/5383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1486856A
Cited
US1701691A
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US1833700A
Cited
US1772406A
Cited
US1996345A
Cited
US2250244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |