US2709525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retaining plate and screen assembly for clarifiers
Assignee: HOUDAILLE HERSHEY OF INDIANA I
•
Filing: 1950-09-02
•
Granted: 1955-05-31
•
Expires: 1970-09-02
Abstract
No abstract record available.
Inventors
- 👤 Conrad S Beyer
- 👤 Kimbro John James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:17
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/50; B01D29/52; B01D29/11; B01D29/13; B01D29/15; B01D29/62; B01D29/66; B01D2201/00; B01D2201/04; B01D2201/043; B01D2201/0446
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2533762A
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US2498145A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |