US2569722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum insect eradicating device for showcases
Assignee: Individual
•
Filing: 1947-09-02
•
Granted: 1951-10-02
•
Expires: 1967-09-02
Abstract
No abstract record available.
Inventors
- 👤 Clarence O Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:23
CPC Classifications
A; A01; A01M; A01M1/00; A01M1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1505914A
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US809228A
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US790005A
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US1141039A
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US1328114A
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US1935548A
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US1807550A
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US2212210A
Cited
US2138527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |