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Patent US3679369A successfully refreshed from Google Patents.
US3679369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deodorization device
Assignee: Individual
•
Filing: 1970-05-11
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Granted: 1972-07-25
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Expires: 1990-05-11
Abstract
Abstract A DEODORIZATION DEVICE PARTICULARLY ADAPTED FOR USE WITH AMMONIA PROCESS DIAZO COPYING MACHINES INCLUDES AN ODOR REMOVING CONDUIT HAVING TWO ODOR REMOVING SECTIONS THROUGH WHICH AMMONIA CONTAINING EXHAUSTS ARE CAUSED TO FLOW. A FILLER IS PROVIDED IN THE FIRST ODOR REMOVING SECTION, A DEODORIZING CHEMICAL BEING APPLIED TO THE FILLER, WHILE AN AMMONIA ADSORBENT IS PROVIDED IN THE SECOND ODOR REMOVING SECTION, THE AMMONIA CONTAINING EXHAUSTS FLOWING FIRST THROUGH THE FIRST SECTION AND THEN THROUGH THE SECOND SECTION.
Inventors
- 👤 Hideo Hashimoto
- 👤 Nobuo Kasahara
- 👤 Toshio Yoshino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:36
CPC Classifications
G; G03; G03D; G03D7/00; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |