Patent US3284106A successfully refreshed from Google Patents.
US3284106A
Expired / Lapsed
US
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Swivel joint
Assignee: Dow Chemical Co
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Filing: 1964-08-04
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Granted: 1966-11-08
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Expires: 1984-08-04
Abstract
No abstract record available.
Inventors
- 👤 Donald L Mcintosh
- 👤 Wilbur T Stephenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:07
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/18; F16L58/184; F16L27/00; F16L27/08; F16L27/0804; F16L27/0837; F16L27/0845
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE526147A
Cited
US2726104A
Cited
US3004783A
Cited
US3052489A
Cited
US3135128A
Cited
US3142499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |