US2254441A
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US
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Assignee: Kloeckner Humboldt Deutz AG
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Filing: 1939-08-12
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Granted: 1941-09-02
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Expires: 1959-08-12
Abstract
No abstract record available.
Inventors
- 👤 Muller Helmut
- 👤 Pischinger Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:17
CPC Classifications
F; F02; F02M; F02M59/00; F02M59/20; F02M59/24; F02M59/26; F02D; F02D1/00; F02D1/02; F02D1/08; F02D1/12; F02M39/00; F02M39/005; F02M57/00; F02M59/02; F02M61/00; F02M2700/00; F02M2700/07; F02M2700/13; F02M2700/1317
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-09-01 | 1945-03-03 | 1945-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-09-01 | 1949-03-03 | 1949-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-09-01 | 1953-03-03 | 1953-09-02 | $7700.00 | Window Closed / Lapsed |