Patent DE268353C successfully refreshed from Google Patents.
US2196108A
Expired / Lapsed
US
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Polishing machine
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1937-08-13
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Granted: 1940-04-02
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Expires: 1957-08-13
Abstract
No abstract record available.
Inventors
- 👤 Howard W Dunbar
- 👤 Herbert S Indge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:14
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/18; B24B5/22; B24B5/225; Y; Y10; Y10S; Y10S451/00; Y10S451/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-04-02 | 1943-10-02 | 1944-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-02 | 1947-10-02 | 1948-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-02 | 1951-10-02 | 1952-04-02 | $7700.00 | Window Closed / Lapsed |