Patent US2678202A successfully refreshed from Google Patents.
US2678202A
Expired / Lapsed
US
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Improvements in and relating to apparatus for generating gas
Assignee: Individual
•
Filing: 1950-08-03
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Granted: 1954-05-11
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Expires: 1970-08-03
Abstract
No abstract record available.
Inventors
- 👤 Brake Leslie Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:57
CPC Classifications
F; F02; F02M; F02M17/00; F02M17/18; F02M17/20; F02M17/22; Y; Y10; Y10S; Y10S261/00; Y10S261/83
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1154507A
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US1249654A
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GB342067A
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US1922749A
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US1986267A
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US1984716A
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US2049333A
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US2207689A
Cited
GB544378A
Cited
US2384609A
Cited
US2429441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |