Patent US2573991A successfully refreshed from Google Patents.
US2573991A
Expired / Lapsed
US
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Work holding portable circular saw
Assignee: MACH CRAFT Manufacturing CO
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Filing: 1946-06-29
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Granted: 1951-11-06
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Expires: 1966-06-29
Abstract
No abstract record available.
Inventors
- 👤 Schildknecht Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:47
CPC Classifications
B; B23; B23D; B23D45/00; B23D45/006; B23D45/16; Y; Y10; Y10T; Y10T83/00; Y10T83/667; Y10T83/748; Y10T83/7487; Y10T83/7573
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US184503A
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US423278A
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US536826A
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US766725A
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GB118846A
Cited
US1388186A
Cited
FR542508A
Cited
DE401505C
Cited
US1873700A
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US2378554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |