US2928158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of heattreating articles
Assignee: Individual
•
Filing: 1956-01-09
•
Granted: 1960-03-15
•
Expires: 1976-01-09
Abstract
No abstract record available.
Inventors
- 👤 Boyd C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F26; F26B; F26B15/00; F27B9/30; F27B2009/3088; F27B9/02; F27B9/021; F27B9/26; F27B9/262; F27B9/3005; F27B9/3011; F27B9/40; F27M; F27M2001/00; F27M2001/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1701223A
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US1624204A
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US1610968A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |