Patent US3103923A successfully refreshed from Google Patents.
US3103923A
Expired / Lapsed
US
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Heating apparatus for automotive vehicles
Assignee: Eberspaecher Climate Control Systems GmbH and Co KG
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Filing: 1959-11-16
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Granted: 1963-09-17
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Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 Kofink Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:26
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/22; B60H1/2203; B60H1/2212; F; F23; F23D; F23D11/00; F23D11/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US792667A
Cited
GB191218359A
Cited
US2286909A
Cited
US2757662A
Cited
US2777508A
Cited
US2873701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |