US2659358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel truing apparatus
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1951-05-08
•
Granted: 1953-11-17
•
Expires: 1971-05-08
Abstract
No abstract record available.
Inventors
- 👤 Oiva E Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:37
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/08; B24B53/081; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2171516A
Cited
GB536300A
Cited
US2302854A
Cited
US2246463A
Cited
US2433027A
Cited
US2576570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |