Patent US2631020A successfully refreshed from Google Patents.
US2631020A
Expired / Lapsed
US
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Gas generator
Assignee: Individual
•
Filing: 1949-09-01
•
Granted: 1953-03-10
•
Expires: 1969-09-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph J Malir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:44
CPC Classifications
F; F17; F17C; F17C7/00; F17C7/02; F17C7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US777390A
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US1103789A
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US1883142A
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US2050514A
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US1883143A
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US1991568A
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US2049333A
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US2152978A
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US2205089A
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US2323274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |