Patent US2881812A successfully refreshed from Google Patents.
US2881812A
Expired / Lapsed
US
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Sliding material guide for table saws
Assignee: Individual
•
Filing: 1957-05-27
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Granted: 1959-04-14
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Expires: 1977-05-27
Abstract
No abstract record available.
Inventors
- 👤 John W Alumbaugh
- 👤 Ernest W Greenwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:10
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/005; B27; B27B; B27B25/00; B27B25/10; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6608; Y10T83/6614
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US305563A
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US420739A
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US556658A
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US812574A
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US913078A
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US1872388A
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US2260883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |