US3385587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-capacity multijet oxygen lances
Assignee: Union Carbide Corp
•
Filing: 1965-05-20
•
Granted: 1968-05-28
•
Expires: 1985-05-20
Abstract
No abstract record available.
Inventors
- 👤 George H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:59
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2863656A
Cited
US3121457A
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US3130252A
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US3045997A
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US3112194A
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US3169161A
Cited
US3071363A
Cited
US3141763A
Cited
US3302882A
Cited
US3304009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |