US2997245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for pulverizing and/or decomposing solid materials
Assignee: KOHLSWA JERNVERKS AB
•
Filing: 1959-01-13
•
Granted: 1961-08-22
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Expires: 1979-01-13
Abstract
No abstract record available.
Inventors
- 👤 Nilsson Eric Odel Folke
- 👤 Nilsson Sven Ingemar
- 👤 Hagelin Erik Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:53
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/06; B22F9/08; B22F9/082; B01; B01J; B01J13/00; B01J13/0086; B01J19/00; B01J19/08; B01J19/10; B02; B02C; B02C19/00; B02C19/18; Y; Y10; Y10S; Y10S29/00; Y10S29/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2163649A
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US2384892A
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US2462554A
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US2510574A
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US2617874A
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US2636219A
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US2738172A
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US2832545A
Cited
US2889580A
Cited
US2980345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |