Patent US2990730A successfully refreshed from Google Patents.
US2990730A
Expired / Lapsed
US
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Self-adjusting device for finishing tools
Assignee: Normacem SA
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Filing: 1958-04-18
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Granted: 1961-07-04
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Expires: 1978-04-18
Abstract
No abstract record available.
Inventors
- 👤 Pougnand Clement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:33
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03432; B23B29/03478; Y; Y10; Y10S; Y10S408/00; Y10S408/702; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/852
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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |