Patent US2701892A successfully refreshed from Google Patents.
US2701892A
Expired / Lapsed
US
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Vacuum cleaner
Assignee: RICHARD H NEITZEL
•
Filing: 1951-09-25
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Granted: 1955-02-15
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Expires: 1971-09-25
Abstract
No abstract record available.
Inventors
- 👤 Edgar C Mingus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:49
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L9/0405; A47L9/0416
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1624251A
Cited
US1727524A
Cited
US1708194A
Cited
US2107571A
Cited
US2078634A
Cited
FR781510A
Cited
US2482166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |