US3153546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe elbow insulating jacket
Assignee: Individual
•
Filing: 1961-08-22
•
Granted: 1964-10-20
•
Expires: 1981-08-22
Abstract
No abstract record available.
Inventors
- 👤 Victor R Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:29
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/10; F16L59/11; Y; Y10; Y10S; Y10S285/00; Y10S285/921; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US388260A
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US471620A
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US52520A
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US1440273A
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US1736492A
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US987693A
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CH65989A
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FR774641A
Cited
US2650114A
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US2650180A
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US2908744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |