US3415547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annular locking assembly used in ring attachments for preventing water leakage in water pipe connections
Assignee: Individual
•
Filing: 1966-08-26
•
Granted: 1968-12-10
•
Expires: 1986-08-26
Abstract
No abstract record available.
Inventors
- 👤 Yano Shinkichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:59
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/168; F16L55/178
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US623208A
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US1364313A
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US1588301A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |