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US1201043A
Expired / Lapsed
US
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Apparatus for dividing air into its elements by fractional distillation.
Assignee: Individual
•
Filing: 1908-12-09
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Granted: 1916-10-10
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Expires: 1928-12-09
Abstract
No abstract record available.
Inventors
- 👤 Maurice Hazard-Flamand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:10
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/905
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) | 1919-10-10 | 1920-04-10 | 1920-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-10-10 | 1924-04-10 | 1924-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-10-10 | 1928-04-10 | 1928-10-10 | $7700.00 | Window Closed / Lapsed |