US2911240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing means for receptacle shaft opening
Assignee: Mixing Equipment Co Inc
•
Filing: 1956-08-30
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Granted: 1959-11-03
•
Expires: 1976-08-30
Abstract
No abstract record available.
Inventors
- 👤 Richard D Boutros
- 👤 Dykman Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:13
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1475038A
Cited
US1789497A
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US2127865A
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US2365146A
Cited
US2479711A
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US2612391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |