US2794469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hole saws
Assignee: Millers Falls Co
•
Filing: 1954-01-11
•
Granted: 1957-06-04
•
Expires: 1974-01-11
Abstract
No abstract record available.
Inventors
- 👤 William H Shortell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/0426; B23B2215/00; B23B2215/72; B23B2260/00; B23B2260/082; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/895; Y10T408/8957; Y10T408/896; Y10T408/8967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US467383A
Cited
US1073005A
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US2015339A
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US2062257A
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US2306807A
Cited
US2349400A
Cited
US2473077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |