US2561805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier
Assignee: Individual
•
Filing: 1945-04-10
•
Granted: 1951-07-24
•
Expires: 1965-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jose S Lombard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:14
CPC Classifications
A; A24; A24F; A24F25/00; A24F25/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US435255A
Cited
US499137A
Cited
US1308574A
Cited
US721870A
Cited
US902521A
Cited
US1035507A
Cited
US1668892A
Cited
US1999554A
Cited
US2247600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |