Patent US2657078A successfully refreshed from Google Patents.
US2657078A
Expired / Lapsed
US
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Gasket seal for pipe joints
Assignee: Individual
•
Filing: 1949-08-19
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Granted: 1953-10-27
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Expires: 1969-08-19
Abstract
No abstract record available.
Inventors
- 👤 John R Virgil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:38
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/06; B; B60; B60T; B60T17/00; B60T17/04; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US481105A
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US624305A
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US1440207A
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US1956683A
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US1959607A
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US2017717A
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US2113098A
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US2174105A
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US2383959A
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US2452277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |