US2433740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical vibrator
Assignee: Individual
•
Filing: 1946-02-26
•
Granted: 1947-12-30
•
Expires: 1966-02-26
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 22:40
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)
US1315975A
Cited
US1029388A
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US1671245A
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US1633809A
Cited
US1924082A
Cited
US2013513A
Cited
US2290725A
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GB557089A
Cited
US2366618A
Cited
US2402815A
Cited
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 |