Patent US2198479A successfully refreshed from Google Patents.
Patent US1167740A successfully refreshed from Google Patents.
US1167740A
Expired / Lapsed
US
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Method of controlling the humidity of air under pressure.
Assignee: Buffalo Forge Co
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Filing: 1911-08-21
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Granted: 1916-01-11
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Expires: 1931-08-21
Abstract
No abstract record available.
Inventors
- 👤 Willis H Carrier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:39
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; Y; Y10; Y10S; Y10S261/00; Y10S261/34
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) | 1919-01-10 | 1919-07-12 | 1920-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-01-10 | 1923-07-12 | 1924-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-01-10 | 1927-07-12 | 1928-01-11 | $7700.00 | Window Closed / Lapsed |