US2689507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade assembly
Assignee: MASTER VIBRATOR CO
•
Filing: 1948-06-03
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Granted: 1954-09-21
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Expires: 1968-06-03
Abstract
No abstract record available.
Inventors
- 👤 Harold E Mccrery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:07
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/20; E04F21/24; E04F21/245; E04F21/248
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) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |