US2813380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine-work loader
Assignee: Saint Gobain Abrasives Inc
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Filing: 1956-06-05
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Granted: 1957-11-19
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Expires: 1976-06-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Narel
- 👤 Glover C Joyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:31
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/005; B23; B23Q; B23Q7/00; B23Q7/04; B24B5/00; B24B5/36; B24B5/42
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) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |