Patent US2455975A successfully refreshed from Google Patents.
US2455975A
Expired / Lapsed
US
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Gas generator
Assignee: EIDP Inc
•
Filing: 1944-06-28
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Granted: 1948-12-14
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Expires: 1964-06-28
Abstract
No abstract record available.
Inventors
- 👤 Walter M Buehl
- 👤 Clark B Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 23:16
CPC Classifications
C; C10; C10H; C10H9/00; B; B01; B01J; B01J7/00; B01J7/02; C01; C01B; C01B3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US726139A
Cited
US705570A
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US834831A
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US1016681A
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US1049034A
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US1684979A
Cited
US2211430A
Cited
US2334211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |