Patent US2957628A successfully refreshed from Google Patents.
US2957628A
Expired / Lapsed
US
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Pressure and temperature control of air mixing outlet unit
Assignee: Hospitality Homes
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Filing: 1958-08-14
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Granted: 1960-10-25
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Expires: 1978-08-14
Abstract
No abstract record available.
Inventors
- 👤 Bernard E Curran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:46
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/044; F24F3/048; F24F3/052; F24F3/0522; G; G05; G05D; G05D11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB253317A
Cited
US2506700A
Cited
US2508074A
Cited
US2710724A
Cited
US2729429A
Cited
US2828076A
Cited
US2856131A
Cited
US2844322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |