US2987307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined continuous sintering and cooler machine
Assignee: Beazer East Inc
•
Filing: 1958-06-18
•
Granted: 1961-06-06
•
Expires: 1978-06-18
Abstract
No abstract record available.
Inventors
- 👤 Paul J Homan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:08
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/16; C22B1/20; B; B01; B01J; B01J19/00; F; F27; F27B; F27B21/00; F27B21/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1281585A
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US1768534A
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US1797931A
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DE948598C
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US2750274A
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FR1093611A
Cited
US2832584A
Cited
US2763479A
Cited
US2745659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |