US2555199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner attachment
Assignee: Lewyt Corp
•
Filing: 1948-06-04
•
Granted: 1951-05-29
•
Expires: 1968-06-04
Abstract
No abstract record available.
Inventors
- 👤 Carl E Meyerhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:55
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1911669A
Cited
US947726A
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US1841587A
Cited
US1891256A
Cited
GB351962A
Cited
US1854458A
Cited
US2085244A
Cited
US2095066A
Cited
US2311155A
Cited
US2248610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |