Patent US2476295A successfully refreshed from Google Patents.
US2476295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air freshening system
Assignee: Individual
•
Filing: 1946-11-06
•
Granted: 1949-07-19
•
Expires: 1966-11-06
Abstract
No abstract record available.
Inventors
- 👤 Edmund E Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:30
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00357; B60H1/00371; B60H1/00007; B60H1/00207; B60H2001/00221
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1668689A
Cited
US2026425A
Cited
US1842368A
Cited
US2147906A
Cited
US2201916A
Cited
US2158741A
Cited
US2158758A
Cited
US2251376A
Cited
US2213446A
Cited
US2266986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |