Patent US3304005A successfully refreshed from Google Patents.
US3304005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe heating system for trailers
Assignee: Individual
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Filing: 1965-03-12
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Granted: 1967-02-14
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Expires: 1985-03-12
Abstract
No abstract record available.
Inventors
- 👤 Sr Donald E Lytle
- 👤 Frank A Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:27
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00357; B60H1/00364
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN COMBINATION WITH A MOBILE TRAILER INCLUDING AN INTERIOR AREA HAVING A FLOOR, AN INTERNAL FORCED AIR HEATING SYSTEM INCLUDING A FURNACE CONTAINED IN THE TRAILER, AT LEAST ONE HEATED AIR CONDUIT, AND AN INTERNAL WATER DISTRIBUTION SYSTEM INCLUDING A PIPE ADAPTED TO BE CONNECTED TO A FITTING LEADING FROM AN EXTERNAL SOURCE OF WATER SUPPLY, THE IMPROVEMENT WHICH CONSISTS IN PROVIDING AN EXTENSIBLE HOLLOW COVERING ENCLOSING SAID PIPE AND ADAPTED TO ENCLOSE SAID FITTING AND PROVIDING A CONNECTING CONDUIT FROM SAID ONE CONDUIT TO SAID COVERING TO PROVIDE HEATED AIR FROM SAID INTERNAL FORCED AIR HEATING SYSTEM AROUND SAID PIPE AND THE FITTING TO PREVENT GREEZING THEREOF.
Claim 2
Dependent Claim
108 words
IN COMBINATION WITH A MOBILE TRAILER INCLUDING AN INTERIOR AREA HAVING A FLOOR, AN INTERNAL FORCED AIR HEATING SYSTEM INCLUDING A FURNACE CONTAINED IN THE TRAILER, AT LEAST ONE HEATED AIR CONDUIT, AND AN INTERNAL WATER DISTRIBUTION SYSTEM INCLUDING A PIPE ADAPTED TO BE CONNECTED TO A FITTING LEADING FROM AN EXTERNAL SOURCE OF WATER SUPPLY, THE IMPROVEMENT WHICH CONSISTS IN PROVIDING AN EXTENSIBLE HOLLOW COVERING ENCLOSING SAID PIPE AND ADAPTED TO ENCLOSE SAID FITTING AND PROVIDING A CONNECTING CONDUIT FROM SAID ONE CONDUIT TO SAID COVERING TO PROVIDE HEATED AIR FROM SAID INTERNAL FORCED AIR HEATING SYSTEM AROUND SAID PIPE AND THE FITTING TO PREVENT GREEZING THEREOF.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |