US2839696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor drive for dental tools
Assignee: RAE MOTOR CORP
•
Filing: 1952-10-17
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Granted: 1958-06-17
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Expires: 1972-10-17
Abstract
No abstract record available.
Inventors
- 👤 Irvie H Dunham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:14
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1217815A
Cited
FR575597A
Cited
US1817216A
Cited
US1869223A
Cited
US1782927A
Cited
US2207219A
Cited
US2650993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |