US2688098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emanator for radioactive gas
Assignee: Individual
•
Filing: 1951-08-17
•
Granted: 1954-08-31
•
Expires: 1971-08-17
Abstract
No abstract record available.
Inventors
- 👤 Augusto A Monasterio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:17
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/04; G21G4/10; A; A61; A61K; A61K51/00; A61K51/12; A61K51/1282; A61K51/1289; A61K2121/00
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) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |