US3096103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual passage rotary swivel
Assignee: Armco Inc
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Filing: 1959-10-13
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Granted: 1963-07-02
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Expires: 1979-10-13
Abstract
No abstract record available.
Inventors
- 👤 Demery A Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:50
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/12; E21B21/02; F; F16; F16L; F16L39/00; F16L39/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |