US2189735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin bonded abrasive article
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1938-01-28
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Granted: 1940-02-06
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Expires: 1958-01-28
Abstract
No abstract record available.
Inventors
- 👤 Samuel S Kistler
- 👤 Carl E Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:35
CPC Classifications
C; C08; C08L; C08L75/00; C08L75/04; B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/22; C08F; C08F20/00; C08F20/02; C08F20/10; C09; C09G; C09G1/00
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) | 1943-02-05 | 1943-08-07 | 1944-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-05 | 1947-08-07 | 1948-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-05 | 1951-08-07 | 1952-02-06 | $7700.00 | Window Closed / Lapsed |