US2609149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clinker cooling
Assignee: Lone Star Cement Corp
•
Filing: 1949-05-10
•
Granted: 1952-09-02
•
Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 Posselt Ejnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:22
CPC Classifications
F; F27; F27D; F27D99/00; B; B02; B02C; B02C13/00; F27D15/00; F27D15/02; F27D15/0206; F27D15/0213; F27D3/00; F27D2003/0001; F27D2003/0006; F27D2003/0009; F27D2003/0034; F27D2003/0071; F27D2015/0246; F27D2015/0253; F27D2015/026; F27D3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1660A
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US433777A
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US2163513A
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US757069A
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US1047370A
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US1449510A
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US1959465A
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DE611020C
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US2166403A
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US2375487A
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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) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |