Patent US2751850A successfully refreshed from Google Patents.
US2751850A
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Diaphragm structure and device embodying it
Assignee: Tokheim Corp
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Filing: 1949-04-25
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Granted: 1956-06-26
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Expires: 1969-04-25
Abstract
No abstract record available.
Inventors
- 👤 Charles D Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:02
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/20; F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/0081; F04B43/009; F04B43/02; F04B43/023; F16; F16J; F16J3/00; F16J3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1610473A
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US2033354A
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US2198192A
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US2258009A
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US2658526A
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US2520771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |