US3360760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating unit
Assignee: Whirlpool Corp
•
Filing: 1965-09-30
•
Granted: 1967-12-26
•
Expires: 1985-09-30
Abstract
No abstract record available.
Inventors
- 👤 Philip P Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:49
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/10; H05B3/12; H05B3/14; H05B3/146
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A HEATING UNIT, COMPRISING: A FRANGIBLE ELECTRIC HEATING ELEMENT GENERATING HEAT AND HAVING SPACED PARTS, WHEN IN USE; AND A REINFORCING MATERIAL BETWEEN SAID PARTS TO INHIBIT BREAKAGE OF SAID PARTS, SAID REINFORCING MATERIAL BEING HEAT REMOVABLE BY HEAT GENERATED IN SAID UNIT DURING THE FIRST OPERATION OF SAID UNIT AT NORMAL OPERATING TEMPERATURES.
Claim 2
Dependent Claim
54 words
A HEATING UNIT, COMPRISING: A FRANGIBLE ELECTRIC HEATING ELEMENT GENERATING HEAT AND HAVING SPACED PARTS, WHEN IN USE; AND A REINFORCING MATERIAL BETWEEN SAID PARTS TO INHIBIT BREAKAGE OF SAID PARTS, SAID REINFORCING MATERIAL BEING HEAT REMOVABLE BY HEAT GENERATED IN SAID UNIT DURING THE FIRST OPERATION OF SAID UNIT AT NORMAL OPERATING TEMPERATURES.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |