Patent US3498025A successfully refreshed from Google Patents.
US3498025A
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US
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Adsorption process and apparatus
Assignee: Ikon Office Solutions Inc
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Filing: 1968-06-25
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Granted: 1970-03-03
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Expires: 1988-06-25
Abstract
No abstract record available.
Inventors
- 👤 Roy M Bednarski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:00
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/047; B01D53/0476; B01D2253/00; B01D2253/10; B01D2253/106; B01D2253/108; B01D2256/00; B01D2256/10; B01D2257/00; B01D2257/30; B01D2257/304; B01D2257/40; B01D2257/406; B01D2257/50; B01D2257/504; B01D2257/80; B01D2259/00; B01D2259/40; B01D2259/40007; B01D2259/40011; B01D2259/40043; B01D2259/4005; B01D2259/40052; B01D2259/40058; B01D2259/40062; B01D2259/40077; B01D2259/40081; B01D2259/402; B01D53/0407; B01D53/0446; B01D53/26; B01D53/261; Y; Y02; Y02C; Y02C20/00; Y02C20/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2660232A
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US3155468A
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US3085379A
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US3176444A
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US3255576A
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US3355860A
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US3399510A
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US3367269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |