US2954095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: Rexair Inc
•
Filing: 1957-09-30
•
Granted: 1960-09-27
•
Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Brock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:37
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/18; A47L9/181; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/365; A47L9/185; A47L9/186; A47L9/187; A47L9/188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1032536A
Cited
US1790507A
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US2233167A
Cited
US2114780A
Cited
US2250226A
Cited
US2221572A
Cited
US2314986A
Cited
US2228750A
Cited
US2527015A
Cited
US2539867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |