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US2667824A
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Blade attaching means
Assignee: MASTER VIBRATOR CO
•
Filing: 1947-03-19
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Granted: 1954-02-02
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Expires: 1967-03-19
Abstract
No abstract record available.
Inventors
- 👤 Harold E Mccrery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:58
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/20; E04F21/24; E04F21/245; E04F21/248; E04F21/02; E04F21/16; E04F21/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US425110A
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US653795A
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US838608A
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US961302A
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US1121281A
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US1501192A
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US2083400A
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US2048529A
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US2392932A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |