Patent US3445127A successfully refreshed from Google Patents.
US3445127A
Expired / Lapsed
US
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Universal flange connector
Assignee: Hydrasearch Co Inc
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Filing: 1967-05-26
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Granted: 1969-05-20
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Expires: 1987-05-26
Abstract
No abstract record available.
Inventors
- 👤 John L Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:06
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/1205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US366541A
Cited
US1025759A
Cited
GB314569A
Cited
US2370354A
Cited
DE1041661B
Cited
GB854763A
Cited
US2984176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |