Patent US2335898A successfully refreshed from Google Patents.
Patent US2828076A successfully refreshed from Google Patents.
US2828076A
Expired / Lapsed
US
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Air conditioning apparatus
Assignee: Honeywell Inc
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Filing: 1955-08-01
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Granted: 1958-03-25
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Expires: 1975-08-01
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Donahue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:38
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/138; F; F24; F24F; F24F11/00; F24F11/30; F24F11/70; F24F11/72; F24F11/74; F24F11/76; F24F3/00; F24F3/044; F24F3/048; F24F3/052; F24F3/0522; G05D7/00; G05D7/03; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |