US3542592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cleaning members with fluids
Assignee: Bell Tech Systems Inc
•
Filing: 1968-05-02
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Granted: 1970-11-24
•
Expires: 1988-05-02
Abstract
No abstract record available.
Inventors
- 👤 Leon A Zweig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:35
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/02; B08B15/026; B08B3/00; B08B3/006; B41; B41B; B41B11/00; B41F; B41F35/00; B41F35/001; B41P; B41P2235/00; B41P2235/30; B41P2235/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2372599A
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FR978290A
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US2685293A
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US3102057A
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US2980123A
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US2947312A
Cited
US3100724A
Cited
US3076468A
Cited
US3373752A
Cited
US3144872A
Cited
US3355324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |