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US2416852A
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Assignee: WALDES KOH I NOER Inc
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Filing: 1942-12-17
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Granted: 1947-03-04
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Expires: 1962-12-17
Abstract
No abstract record available.
Inventors
- 👤 Louis W Schaaff
- 👤 Heimann Heinrich
- 👤 Wurael Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:27
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/18; F16B21/186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1666352A
Cited
USRE18144E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-03 | 1950-09-02 | 1951-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-03 | 1954-09-02 | 1955-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-03 | 1958-09-02 | 1959-03-04 | $7700.00 | Window Closed / Lapsed |