US2509964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction cleaner nozzle adjustment
Assignee: Eureka Williams Co
•
Filing: 1944-02-10
•
Granted: 1950-05-30
•
Expires: 1964-02-10
Abstract
No abstract record available.
Inventors
- 👤 George R Coss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:48
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1348587A
Cited
US1348585A
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US1346972A
Cited
US2060510A
Cited
US2335377A
Cited
US2260207A
Cited
US2296077A
Cited
US2396846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |