Patent US1015800A successfully refreshed from Google Patents.
US1015800A
Expired / Lapsed
US
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Process of liquefying air and separating it into its elements.
Assignee: Individual
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Filing: 1909-10-27
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Granted: 1912-01-30
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Expires: 1929-10-27
Abstract
No abstract record available.
Inventors
- 👤 Ernst Jaenecke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:38
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; A; A62; A62B; A62B7/00; A62B7/14; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1915-01-29 | 1915-07-31 | 1916-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-01-29 | 1919-07-31 | 1920-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-01-29 | 1923-07-31 | 1924-01-30 | $7700.00 | Window Closed / Lapsed |