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US2487846A
Expired / Lapsed
US
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Motor for dry-shaving apparatus
Assignee: Hartford National Bank and Trust Co
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Filing: 1946-05-21
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Granted: 1949-11-15
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Expires: 1966-05-21
Abstract
No abstract record available.
Inventors
- 👤 Boelsums Willem Frederik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:57
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/14; H02K1/141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2219552A
Cited
US2347870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |