US2743918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High angle rotary kilns
Assignee: Individual
•
Filing: 1951-08-21
•
Granted: 1956-05-01
•
Expires: 1971-08-21
Abstract
No abstract record available.
Inventors
- 👤 Struckmann Holger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:17
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/20; F27B7/36; F27B7/362; F27B7/14; F27B7/16; F27B7/167; F27B2007/168; F27B7/22; F27B2007/2246; F27B2007/2273; F27B2007/365; F27B2007/367
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US181776A
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US858949A
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US1362418A
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US1827144A
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US1802196A
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DE592105C
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US2119528A
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US2112492A
Cited
US2229383A
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US2348446A
Cited
US2404650A
Cited
US2507123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |