US2900894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
W tritt
Assignee: —
•
Filing: —
•
Granted: 1959-08-25
•
Expires: 1976-08-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:28
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/44; A47J31/54; A47J31/56; A47J31/46; A47J31/462; A47J31/467; A47J31/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2737880A
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US1256206A
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US1831898A
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US1809899A
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US1844709A
Cited
US2149270A
Cited
DE672780C
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USRE21879E
Cited
US2205290A
Cited
US2493932A
Cited
US2551219A
Cited
US2682984A
Cited
US2589783A
Cited
US2488817A
Cited
US2639078A
Cited
US2813965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |