US2419915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the storage of fluorine
Assignee: Individual
•
Filing: 1943-01-22
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Granted: 1947-04-29
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Expires: 1963-01-22
Abstract
No abstract record available.
Inventors
- 👤 Homer F Priest
- 👤 Aristid V Grosse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:33
CPC Classifications
F; F17; F17C; F17C1/00; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0114; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/056; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/06; F17C2203/0602; F17C2203/0607; F17C2203/0612; F17C2203/0614; F17C2203/0619; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0648; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0305; F17C2205/0323; F17C2205/0329; F17C2205/037; F17C2209/00; F17C2209/22; F17C2209/221; F17C2221/00; F17C2221/01; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/03; F17C2223/035; F17C2260/00; F17C2260/04; F17C2260/042; Y; Y10; Y10S; Y10S220/00; Y10S220/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |