Patent US2648977A successfully refreshed from Google Patents.
US2648977A
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Apparatus for determining pressure in containers
Assignee: Hires Castner & Harris Inc
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Filing: 1948-08-24
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Granted: 1953-08-18
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Expires: 1968-08-24
Abstract
No abstract record available.
Inventors
- 👤 Mills John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:33
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1825699A
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US1900285A
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US1875862A
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US2011332A
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US2374140A
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US2445176A
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US2418379A
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US2433043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |