US3232287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile defreezer unit
Assignee: Individual
•
Filing: 1963-12-24
•
Granted: 1966-02-01
•
Expires: 1983-12-24
Abstract
No abstract record available.
Inventors
- 👤 Gillingham Lee Harwood
- 👤 Sr William C Grau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:08
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN COMBINATION WITH A MOTOR VEHICLE HAVING AN EXHAUST PIPE, A HEATING SYSTEM FOR DEFROSTING AREAS OF SAID MOTOR VEHICLE COMPRISING, STRUCTURE DEFINING FIRST AND SECOND CHAMBERS HAVING A PASSAGE COMMUNICATING THEREBE TWEEN, SAID FIRST CHAMBER HAVING AN INLET FOR RECEIVING THE EXHAUST GASES OF SAID MOTOR VEHICLE, WITH SAID EXHAUST PIPE THEREOF BEING IN COMMUNICATION WITH SAID SECOND CHAMBER, FIRST AND SECOND CONDUITS CONNECTING SAID FIRST AND SECOND CHAMBERS, RESPECTIVELY, WITH SAID AREAS OF SAID MOTOR VEHICLE, AND FIRST AND SECOND VALVE MEANS SELECTIVELY PASSING SAID EXHAUST GASES BETWEEN SAID FIRST CONDUIT AND SAID PASSAGE AND BETWEEN SAID SECOND CONDUIT AND SAID EXHAUST PIPE, RESPECTIVELY.
Claim 2
Dependent Claim
106 words
IN COMBINATION WITH A MOTOR VEHICLE HAVING AN EXHAUST PIPE, A HEATING SYSTEM FOR DEFROSTING AREAS OF SAID MOTOR VEHICLE COMPRISING, STRUCTURE DEFINING FIRST AND SECOND CHAMBERS HAVING A PASSAGE COMMUNICATING THEREBE TWEEN, SAID FIRST CHAMBER HAVING AN INLET FOR RECEIVING THE EXHAUST GASES OF SAID MOTOR VEHICLE, WITH SAID EXHAUST PIPE THEREOF BEING IN COMMUNICATION WITH SAID SECOND CHAMBER, FIRST AND SECOND CONDUITS CONNECTING SAID FIRST AND SECOND CHAMBERS, RESPECTIVELY, WITH SAID AREAS OF SAID MOTOR VEHICLE, AND FIRST AND SECOND VALVE MEANS SELECTIVELY PASSING SAID EXHAUST GASES BETWEEN SAID FIRST CONDUIT AND SAID PASSAGE AND BETWEEN SAID SECOND CONDUIT AND SAID EXHAUST PIPE, RESPECTIVELY.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |