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US2754869A
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US
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Assignee: Individual
•
Filing: 1954-06-29
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Granted: 1956-07-17
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Expires: 1974-06-29
Abstract
No abstract record available.
Inventors
- 👤 Henning G Bartels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:14
CPC Classifications
A; A47; A47J; A47J47/00; A47J47/18; Y; Y10; Y10S; Y10S220/00; Y10S220/904; Y10S383/00; Y10S383/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190828346A
Cited
US1202085A
Cited
US1225511A
Cited
US1691905A
Cited
US2334410A
Cited
US2432001A
Cited
US2509370A
Cited
US2664131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |