Patent US2472243A successfully refreshed from Google Patents.
US2472243A
Expired / Lapsed
US
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Air conditioning apparatus including a sterilizing means
Assignee: Individual
•
Filing: 1946-09-10
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Granted: 1949-06-07
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Expires: 1966-09-10
Abstract
No abstract record available.
Inventors
- 👤 Lloyd M Berryman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:56
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/153; F24F3/1405; F24F2003/144; F24F2003/1446; F24F2003/1452; F24F2221/00; F24F2221/12; F24F2221/125; F24F8/00; F24F8/20; F24F8/22
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) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |