US2966539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically conductive pipe joint and gasket
Assignee: American Cast Iron Pipe Co
•
Filing: 1957-10-07
•
Granted: 1960-12-27
•
Expires: 1977-10-07
Abstract
No abstract record available.
Inventors
- 👤 Edward C Sears
- 👤 William E Snow
- 👤 Chester E Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:56
CPC Classifications
F; F16; F16L; F16L25/00; F16L25/01; Y; Y10; Y10S; Y10S277/00; Y10S277/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2245154A
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US2396848A
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US2454567A
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US2589876A
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US2674644A
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US2885459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |