Room freshener and deodorizer
Abstract
Abstract A box has three compartments. The first is an air intake compartment with a blower to drive stale polluted atmospheric air into an adjacent air transfer compartment. Separating the second, air-transfer compartment from the third compartment is a perforated wall with openings large enough for the passage of air but small enough to confine granular diatomaceous earth in the third compartment. The air-transfer compartment is intermediate the first and third compartments and is bounded by lateral sidewalls having holes therein so that stale, polluted air emerging from the blower, passing through the second compartment into the diatomaceous earth-containing compartment for the absorption of odors and returning into the second compartment is free to discharge through the holes in freshened and deodorized condition.
Inventors
- 👤 George H La Porte
- 👤 Cherie A La Porte
Bibliographic Details
Claims Analysis
Total Claims: 3References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |