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Patent US2821098A successfully refreshed from Google Patents.
US2821098A
Expired / Lapsed
US
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Cutting tool
Assignee: Individual
•
Filing: 1953-11-27
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Granted: 1958-01-28
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Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Blickenstorfer Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:32
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B2251/00; B23B2251/50; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8588; Y10T408/85892; Y10T408/85893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |