US2878060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor diffusing device
Assignee: Airkem Inc
•
Filing: 1957-01-10
•
Granted: 1959-03-17
•
Expires: 1977-01-10
Abstract
No abstract record available.
Inventors
- 👤 Russo Aurelio Dello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:58
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US581957A
Cited
US986149A
Cited
US1152724A
Cited
US1413968A
Cited
GB464850A
Cited
US2555047A
Cited
US2738225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |