US2983432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner with improved fan arrangement
Assignee: General Electric Co
•
Filing: 1956-09-19
•
Granted: 1961-05-09
•
Expires: 1976-09-19
Abstract
No abstract record available.
Inventors
- 👤 Myron D Tupper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:47
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/365
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1465041A
Cited
CH114967A
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US2044830A
Cited
DE711791C
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FR855407A
Cited
GB536197A
Cited
US2391486A
Cited
US2624064A
Cited
US2632914A
Cited
GB680001A
Cited
US2701530A
Cited
US2788171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |