US2723503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1952-11-08
•
Granted: 1955-11-15
•
Expires: 1972-11-08
Abstract
No abstract record available.
Inventors
- 👤 Stewart S Mader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:22
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/36; B24B5/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1882098A
Cited
US2117916A
Cited
US2142050A
Cited
US2442635A
Cited
US2458290A
Cited
US2460744A
Cited
US2655903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |