US2950928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated pipe joint
Assignee: Mueller Co
•
Filing: 1957-12-17
•
Granted: 1960-08-30
•
Expires: 1977-12-17
Abstract
No abstract record available.
Inventors
- 👤 Walter J Bowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:28
CPC Classifications
F; F16; F16L; F16L25/00; F16L25/02; F16L25/023; Y; Y10; Y10S; Y10S285/00; Y10S285/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US299206A
Cited
US764603A
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US936840A
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US1869915A
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US2257385A
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US2278479A
Cited
US2560263A
Cited
FR1047939A
Cited
US2794658A
Cited
GB718350A
Cited
US2850299A
Cited
US2837351A
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 |