Patent US2475603A successfully refreshed from Google Patents.
Patent US3326110A successfully refreshed from Google Patents.
US3326110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating and/or ventilating apparatus for vehicles
Assignee: S Smith and Sons Ltd
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Filing: 1965-08-20
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Granted: 1967-06-20
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Expires: 1985-08-20
Abstract
No abstract record available.
Inventors
- 👤 Orr James Malcolm Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:07
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00021; B60H1/00064; B60H1/00071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
VENTILATING APPARATUS FOR INSTALLATION IN A VEHICLE, COMPRISING A CENTRIFUGAL FAN DISPOSED WITHIN A VOLUTE CASING HAVING AN INLET AND AN OUTLET, FIRST DUCT MEANS CONNECTED TO SAID INLET FOR SUPPLYING SAID FAN WITH AIR FROM THE EXTERIOR OF THE VEHICLE UPON FORWARD MOTION OF SAID VEHICLE, SECOND DUCT MEANS CONNECTED TO SAID OUTLET FOR DELIVERING AIR TO THE PASSENGER COMPARTMENT OF THE VEHICLE, AND MOTOR MEANS FOR DRIVING SAID FAN, SAID FAN HAVING A PLURALITY OF BLADES EACH OF WHICH HAS ITS OUTERMOST PORTION DIRECTED IN A SUBSTANTIALLY RADIAL DIRECTION WITH RESPECT TO THE AXIS OF SAID FAN, THE REMAINING PORTION OF EACH OF SAID BLADES BEING GENERALLY INCLINED AT A SUBSTANTIAL ANGLE TO SAID OUTERMOST SUBSTANTIALLY RADIAL PORTION, AND THE INNERMOST PORTION OF EACH OF SAID BLADES LEADING ITS OUTERMOST PORTION IN THE DIRECTION OF ROTATION OF SAID FAN.
Claim 2
Dependent Claim
141 words
VENTILATING APPARATUS FOR INSTALLATION IN A VEHICLE, COMPRISING A CENTRIFUGAL FAN DISPOSED WITHIN A VOLUTE CASING HAVING AN INLET AND AN OUTLET, FIRST DUCT MEANS CONNECTED TO SAID INLET FOR SUPPLYING SAID FAN WITH AIR FROM THE EXTERIOR OF THE VEHICLE UPON FORWARD MOTION OF SAID VEHICLE, SECOND DUCT MEANS CONNECTED TO SAID OUTLET FOR DELIVERING AIR TO THE PASSENGER COMPARTMENT OF THE VEHICLE, AND MOTOR MEANS FOR DRIVING SAID FAN, SAID FAN HAVING A PLURALITY OF BLADES EACH OF WHICH HAS ITS OUTERMOST PORTION DIRECTED IN A SUBSTANTIALLY RADIAL DIRECTION WITH RESPECT TO THE AXIS OF SAID FAN, THE REMAINING PORTION OF EACH OF SAID BLADES BEING GENERALLY INCLINED AT A SUBSTANTIAL ANGLE TO SAID OUTERMOST SUBSTANTIALLY RADIAL PORTION, AND THE INNERMOST PORTION OF EACH OF SAID BLADES LEADING ITS OUTERMOST PORTION IN THE DIRECTION OF ROTATION OF SAID FAN.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |