US2536871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated abrasive articles
Assignee: 3M Co
•
Filing: 1942-03-02
•
Granted: 1951-01-02
•
Expires: 1962-03-02
Abstract
No abstract record available.
Inventors
- 👤 Carlton Richard Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:03
CPC Classifications
B; B24; B24D; B24D11/00; B24D3/00; B24D3/02; B24D3/04; B24D3/12; C; C09; C09G; C09G1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1555119A
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US1775631A
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US1814768A
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US1777162A
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US2089426A
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US2114166A
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US2101050A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |