Patent US3122893A successfully refreshed from Google Patents.
US3122893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning condensate handling apparatus and method
Assignee: American Air Filter Co Inc
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Filing: 1961-05-19
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Granted: 1964-03-03
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Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 William V Millman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:03
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
THE METHOD OF FORCING CONDENSATE FROM A CONDENSATE COLLECTING LOCATION UNDERLYING A REFRIGERANT EVAPORATOR TO AN ELEVATED DISCHARGE LOCATION ADJACENT A REFRIGERANT CONDENSER SURFACE COMPRISING: IMPOSING A STATIC AIR PRESSURE UPON SAID CONDENSATE AT SAID COLLECTING LOCATION AT LEAST
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |