US3267510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable vacuum cleaner
Assignee: Individual
•
Filing: 1964-04-22
•
Granted: 1966-08-23
•
Expires: 1984-04-22
Abstract
No abstract record available.
Inventors
- 👤 Amanda B Cote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:03
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/28; A47L9/2868; A47L9/2884; A47L5/00; A47L5/12; A47L5/22; A47L5/24; A47L9/2836; A47L9/2842; A47L9/2873
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2867834A
Cited
FR1095620A
Cited
US3027507A
Cited
FR1164749A
Cited
FR1196420A
Cited
FR1299817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |