US2785248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reed damped vibrator arm mechanism
Assignee: Duracell Inc USA
•
Filing: 1953-12-22
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Granted: 1957-03-12
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Expires: 1973-12-22
Abstract
No abstract record available.
Inventors
- 👤 Fredrick L White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:28
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/64; H01H50/74; H01H50/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1676979A
Cited
US2013513A
Cited
US2197607A
Cited
US2440145A
Cited
US2447046A
Cited
US2442270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |