US2578167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel and method of producing same
Assignee: Dentatus AB
•
Filing: 1946-09-18
•
Granted: 1951-12-11
•
Expires: 1966-09-18
Abstract
No abstract record available.
Inventors
- 👤 Bjorklund Gustaf Erik
- 👤 Westberg Johan Eric Hayden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:21
CPC Classifications
B; B24; B24D; B24D18/00; B24D18/0018; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08; B24D3/10; B24D7/00; B24D7/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12153; Y10T428/12479
Claims Analysis
Total Claims: 0
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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) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |