Patent US2190551A successfully refreshed from Google Patents.
Patent US3271972A successfully refreshed from Google Patents.
US3271972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window air conditioning unit
Assignee: Addison Products Co
•
Filing: 1964-10-21
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Granted: 1966-09-13
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Expires: 1984-10-21
Abstract
No abstract record available.
Inventors
- 👤 Verne C Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:44
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN THE COMBINATION WITH APPARATUS FOR COOLING AND VENTILATING LIVING SPACE OF THE TYPE HAVING A PAIR OF HEATEXCHANGER SECTIONS DISPOSABLE ON OPPOSITE SIDES OF A WALL OPENING WITH SAID SECTIONS BEING SEPARATED FROM EACH OTHER THROUGHOUT THE MAJOR PORTION OF THEIR VERTICAL PROJECTIONS AND HAVING A CONNECTOR SECTION COMMON TO SAID SECTIONS OF SHALLOW VERTICAL PROJECTIONS, THE WALL OPENING HAVING CLOSURE MEANS DISPOSABLE BETWEEN SAID HEAT-EXCHANGER SECTIONS AND OVERLYING SAID CONNECTOR SECTION, OF SOUND AND WEATHERPROOFING MEANS FOR THE WALL OPENING BEING DISPOSED IN A VERTICAL PLANE THEREOF AND BEING LOCATED ON OPPOSITE SIDES OF SAID CONNECTOR SECTION AND APPROXIMATING IN VERTICAL PROJECTIONS THE CLEARANCE BETWEEN THE WALL OPENING AND THE CLOSURE MEANS, SAID SOUND AND WEATHERPROOFING MEANS HAVING A VENTILATING OPENING THEREIN.
Claim 2
Dependent Claim
124 words
IN THE COMBINATION WITH APPARATUS FOR COOLING AND VENTILATING LIVING SPACE OF THE TYPE HAVING A PAIR OF HEATEXCHANGER SECTIONS DISPOSABLE ON OPPOSITE SIDES OF A WALL OPENING WITH SAID SECTIONS BEING SEPARATED FROM EACH OTHER THROUGHOUT THE MAJOR PORTION OF THEIR VERTICAL PROJECTIONS AND HAVING A CONNECTOR SECTION COMMON TO SAID SECTIONS OF SHALLOW VERTICAL PROJECTIONS, THE WALL OPENING HAVING CLOSURE MEANS DISPOSABLE BETWEEN SAID HEAT-EXCHANGER SECTIONS AND OVERLYING SAID CONNECTOR SECTION, OF SOUND AND WEATHERPROOFING MEANS FOR THE WALL OPENING BEING DISPOSED IN A VERTICAL PLANE THEREOF AND BEING LOCATED ON OPPOSITE SIDES OF SAID CONNECTOR SECTION AND APPROXIMATING IN VERTICAL PROJECTIONS THE CLEARANCE BETWEEN THE WALL OPENING AND THE CLOSURE MEANS, SAID SOUND AND WEATHERPROOFING MEANS HAVING A VENTILATING OPENING THEREIN.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |