US2863524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: STRAPAVAC Corp
•
Filing: 1955-02-21
•
Granted: 1958-12-09
•
Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 Buda Salvatore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:38
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/0004; A47L7/0023; A47L7/0028; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/365; A47L7/0042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1356061A
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DE450858C
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US1503411A
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US1553076A
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US1691988A
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GB387405A
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US2044827A
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US2116233A
Cited
US2528375A
Cited
US2616517A
Cited
US2540919A
Cited
US2649927A
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US2731103A
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US2703152A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |