US2717409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner nozzle
Assignee: Individual
•
Filing: 1950-09-15
•
Granted: 1955-09-13
•
Expires: 1970-09-15
Abstract
No abstract record available.
Inventors
- 👤 Herbert T Draudt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:52
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/06; A47L9/0666
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1348587A
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GB201639A
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US1744099A
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US2034196A
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GB505931A
Cited
US2157077A
Cited
US2283428A
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US2278382A
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US2511238A
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US2556022A
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US2641015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |