US2433739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrator
Assignee: Individual
•
Filing: 1943-04-23
•
Granted: 1947-12-30
•
Expires: 1963-04-23
Abstract
No abstract record available.
Inventors
- 👤 Laurence H Collins
- 👤 Smith Edwin Comer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:26
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/34; H02M3/38; H02M3/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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DE421012C
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US1944487A
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US2143097A
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US2245511A
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US2267803A
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US2253602A
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US2349125A
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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) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |