Patent US1766878A successfully refreshed from Google Patents.
US3134612A
Expired / Lapsed
US
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Gasket ring for pipe couplings
Assignee: Individual
•
Filing: 1962-02-12
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Granted: 1964-05-26
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Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 Clarence O Glasgow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:38
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/02; F16L17/04; Y; Y10; Y10S; Y10S285/00; Y10S285/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1704003A
Cited
GB318163A
Cited
US2184376A
Cited
US2449795A
Cited
US2949325A
Cited
US2884264A
Cited
US3084959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |