Patent US2996852A successfully refreshed from Google Patents.
US2996852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrading tool
Assignee: Pres-On Abrasives Inc
•
Filing: 1958-06-06
•
Granted: 1961-08-22
•
Expires: 1978-06-06
Abstract
No abstract record available.
Inventors
- 👤 Henry L Gianatasio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:36
CPC Classifications
B; B24; B24D; B24D9/00; B24D9/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US425897A
Cited
US1686938A
Cited
US2146548A
Cited
US2771772A
Cited
US2842844A
Cited
US2781618A
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 |