Patent US2857622A successfully refreshed from Google Patents.
US2857622A
Expired / Lapsed
US
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Apparatus for making sealing means for sewer pipe joints
Assignee: American Vitrified Products Co
•
Filing: 1953-11-10
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Granted: 1958-10-28
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Expires: 1973-11-10
Abstract
No abstract record available.
Inventors
- 👤 Robert B Cleverly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:43
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C35/00; B29C35/02; B29C35/12; B29C65/78; B29C65/80; B29C66/00; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/91411; B29C66/9161; B29C66/91651; B29C66/919; B29C66/9192; B29C66/91921; B29C66/91931; B29C66/91933; B29C70/00; B29C70/68; B29C70/74; B29C70/76; B29C70/766; B29C39/00; B29C66/91653; B29C66/91655; B29C66/92; B29C66/924; B29C66/9241; B29C66/94; B29C66/949; Y; Y10; Y10S; Y10S264/00; Y10S264/46; Y10S285/00; Y10S285/923; Y10S425/00; Y10S425/218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2284741A
Cited
US534445A
Cited
US1457290A
Cited
US1840447A
Cited
US1853344A
Cited
US1984691A
Cited
US2091504A
Cited
US2222615A
Cited
US2368610A
Cited
US2345670A
Cited
US2388042A
Cited
US2548251A
Cited
US2458684A
Cited
US2595502A
Cited
US2574706A
Cited
US2672652A
Cited
US2535451A
Cited
US2557439A
Cited
US2634522A
Cited
US2608501A
Cited
US2608721A
Cited
US2632918A
Cited
US2630613A
Cited
US2635287A
Cited
US2661500A
Cited
US2708055A
Cited
US2715484A
Cited
US2708306A
Cited
US2724175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |