US2723082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile heating system
Assignee: Essex Wire Corp
•
Filing: 1953-01-15
•
Granted: 1955-11-08
•
Expires: 1973-01-15
Abstract
No abstract record available.
Inventors
- 👤 Elmer A Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:07
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/64; H01H37/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2381557A
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US1665801A
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US2019991A
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US1909870A
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US2240003A
Cited
US2312353A
Cited
US2533274A
Cited
US2496135A
Cited
US2562685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |