US3029463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum accessory for built-in portable or other vacuum apparatus for picking up liquids and other materials
Assignee: Individual
•
Filing: 1959-01-30
•
Granted: 1962-04-17
•
Expires: 1979-01-30
Abstract
No abstract record available.
Inventors
- 👤 Harold P Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:03
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/0004; A47L7/0009; A47L7/0014; A47L7/0023; A47L7/0028; A47L7/0038; A47L7/0042; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH42318A
Cited
US950533A
Cited
US2375406A
Cited
US2528375A
Cited
US2549181A
Cited
GB661636A
Cited
US2649927A
Cited
US2703152A
Cited
US2660194A
Cited
US2718404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |