Patent US2974870A successfully refreshed from Google Patents.
US2974870A
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Atmospheric condensation prevention control apparatus
Assignee: Honeywell Inc
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Filing: 1957-08-15
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Granted: 1961-03-14
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Expires: 1977-08-15
Abstract
No abstract record available.
Inventors
- 👤 Pitts Johnston Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F11/00; F24F11/30; F24F2110/00; F24F2110/10; F24F2110/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1276589A
Cited
US1459391A
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US1758494A
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US2136559A
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US2394061A
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US2527115A
Cited
US2647374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |