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Patent US2749744A successfully refreshed from Google Patents.
US2749744A
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US
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Device for testing pressure in containers
Assignee: Primerica Inc
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Filing: 1952-01-29
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Granted: 1956-06-12
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Expires: 1972-01-29
Abstract
No abstract record available.
Inventors
- 👤 Jr John J Doudera
- 👤 Milton L Seaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/32; G01M3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1344515A
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US2216374A
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US2393552A
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US2542905A
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US2486052A
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US2512134A
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US2695515A
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US2642739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |