Patent US807462A successfully refreshed from Google Patents.
Patent US3490201A successfully refreshed from Google Patents.
US3490201A
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US
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Method and apparatus for drying gases
Assignee: Individual
•
Filing: 1966-08-05
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Granted: 1970-01-20
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Expires: 1986-08-05
Abstract
No abstract record available.
Inventors
- 👤 Oliver Dyer Colvin
- 👤 Robert Archer Taylor
- 👤 Samuel Carroll Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:47
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/16; B; B01; B01D; B01D53/00; B01D53/26; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1423; F24F2203/00; F24F2203/10; F24F2203/1004; F24F2203/1032; F24F2203/1056; F24F2203/1068; F24F2203/108; F24F2203/1084; F24F2203/1096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1810312A
Cited
US2519531A
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US2747681A
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US3092477A
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US3085379A
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US3140931A
Cited
US3225517A
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US3176446A
Cited
US3292346A
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US3287883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |