US2634902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet pump for hand vacuum cleaner for connection with air pressure hose, with suctionproduced by aspirating action
Assignee: Individual
•
Filing: 1950-07-03
•
Granted: 1953-04-14
•
Expires: 1970-07-03
Abstract
No abstract record available.
Inventors
- 👤 Robert W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:31
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/16; A47L5/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB199338A
Cited
US1606492A
Cited
US2143296A
Cited
US2164552A
Cited
US2392645A
Cited
US2475832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |