Patent US2941407A successfully refreshed from Google Patents.
US2941407A
Expired / Lapsed
US
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Device for introducing motion into a sealed instrument
Assignee: Daystrom Inc
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Filing: 1953-12-14
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Granted: 1960-06-21
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Expires: 1973-12-14
Abstract
No abstract record available.
Inventors
- 👤 Paul P Huber
- 👤 Edward W Hoyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:53
CPC Classifications
G; G21; G21F; G21F7/00; G21F7/005; F; F16; F16J; F16J15/00; F16J15/50; F16J15/52; F16J15/525
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB555879A
Cited
DE844831C
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US2454340A
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US2513184A
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US2617307A
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US2659569A
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US2697356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |