US2614820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air perfuming device
Assignee: Individual
•
Filing: 1949-05-05
•
Granted: 1952-10-21
•
Expires: 1969-05-05
Abstract
No abstract record available.
Inventors
- 👤 Stephen P Boydjieff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:16
CPC Classifications
F; F24; F24F; F24F8/00; F24F8/50; Y; Y10; Y10S; Y10S261/00; Y10S261/88
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1621766A
Cited
US1902200A
Cited
US2031055A
Cited
US2262772A
Cited
GB545833A
Cited
US2354064A
Cited
US2384016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |