US2794352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drilling machine for use with selftapping service t
Assignee: Mueller Co
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Filing: 1955-02-15
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Granted: 1957-06-04
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Expires: 1975-02-15
Abstract
No abstract record available.
Inventors
- 👤 Frank H Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:32
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/044; F; F16; F16L; F16L47/00; F16L47/26; F16L47/34; B23B2215/00; B23B2215/72; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |