US3023478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-fired kiln
Assignee: Individual
•
Filing: 1960-01-15
•
Granted: 1962-03-06
•
Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
- 👤 Alonzo G Boyles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:54
CPC Classifications
F; F27; F27B; F27B17/00; F27B17/0016; F27B17/0041; F27B17/0075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US510819A
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US1128146A
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US1231224A
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US1411534A
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US1646254A
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US1615217A
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US1894249A
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US1919322A
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US2192752A
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US2192682A
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US2403431A
Cited
US2805709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |