US2645907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for filling containers with predetermined quantities of gas
Assignee: National Cylinder Gas Co
•
Filing: 1951-05-14
•
Granted: 1953-07-21
•
Expires: 1971-05-14
Abstract
No abstract record available.
Inventors
- 👤 Paul F Droste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:00
CPC Classifications
F; F17; F17C; F17C5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1415559A
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US1383411A
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US1572727A
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US1659384A
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US1706942A
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US1815348A
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AU1339333A
Cited
DE704112C
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DE704412C
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US2278192A
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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) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |