Patent US3298069A successfully refreshed from Google Patents.
US3298069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampler
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1965-01-08
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Granted: 1967-01-17
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Expires: 1985-01-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Acre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:29
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12; G01N1/125; Y; Y10; Y10S; Y10S249/00; Y10S249/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
A DEVICE SUITABLE FOR USE IN OBTAINING A METAL SAMPLE WITHOUT INTERRUPTING THE BLOWING OF A HEAT OF STEEL IN A BASIC CONVERTER COMPRISING, A VERTICAL LONGITUDINALLY EXTENDING HOLLOW MEMBER HAVING A PORT CONTAINED THEREIN DISPOSED IN COMMUNICATION WITH THE HOLLOW INTERIOR, A CHILL PLATE SECURED TO THE BOTTOM END THEREOF, AND MEANS DISPOSED TO BE SECURED TO THE TOP OF THE HOLLOW MEMBER
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |