Patent US2981078A successfully refreshed from Google Patents.
US2981078A
Expired / Lapsed
US
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Humidity control and cooling system
Assignee: Individual
•
Filing: 1958-07-07
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Granted: 1961-04-25
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Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 John K Fairbairn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:23
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1417; F24F2003/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2063960A
Cited
US2133334A
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US2147248A
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US2152251A
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US2177869A
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US2159276A
Cited
US2256940A
Cited
US2464766A
Cited
US2723837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |