Patent US5332443A successfully refreshed from Google Patents.
Patent US2789430A successfully refreshed from Google Patents.
US2789430A
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Contact pressure measuring apparatus
Assignee: Allied Control Co Inc
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Filing: 1954-06-25
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Granted: 1957-04-23
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Expires: 1974-06-25
Abstract
No abstract record available.
Inventors
- 👤 Francis S Sinclaire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:46
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/0057
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1818169A
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US2272921A
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US2426583A
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GB614746A
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US2490741A
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US2578031A
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US2626523A
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US2673464A
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US2635458A
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US2699060A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |