US3497065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate for plate and frame filter presses
Assignee: MARINE MIDLAND BANK NA
•
Filing: 1966-11-01
•
Granted: 1970-02-24
•
Expires: 1986-11-01
Abstract
No abstract record available.
Inventors
- 👤 Walter Johnson Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:31
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/12; B01D25/21; B01D25/215
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2300924A
Cited
US2397936A
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US2590242A
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US2594518A
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US2794759A
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US2970365A
Cited
US3245854A
Cited
US3241678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |