US2471727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for supplying abrasive to buffing wheels
Assignee: Lea Manuf Co
•
Filing: 1947-06-19
•
Granted: 1949-05-31
•
Expires: 1967-06-19
Abstract
No abstract record available.
Inventors
- 👤 James P Creamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:20
CPC Classifications
B; B24; B24B; B24B57/00; Y; Y10; Y10S; Y10S29/00; Y10S29/089; Y10S29/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US557292A
Cited
US2083773A
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US1409888A
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US1735600A
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US1857363A
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US1800743A
Cited
US2332992A
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US2380275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |