US2677195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating granular materials
Assignee: Individual
•
Filing: 1951-06-26
•
Granted: 1954-05-04
•
Expires: 1971-06-26
Abstract
No abstract record available.
Inventors
- 👤 Kurt J Menning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:06
CPC Classifications
F; F26; F26B; F26B11/00; F26B11/02; F26B11/04; F26B11/0495
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1545055A
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US2264646A
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US2388917A
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US2354567A
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US2347407A
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US2428090A
Cited
US2572678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |