US2957130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sand conditioning equipment
Assignee: Harry W Dietert Co
•
Filing: 1957-07-11
•
Granted: 1960-10-18
•
Expires: 1977-07-11
Abstract
No abstract record available.
Inventors
- 👤 Harry W Dietert
- 👤 Randolph L Dietert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:06
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/0404; B28C7/0409; B22; B22C; B22C5/00; B22C5/08; G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/043; G01N27/22; G01N27/223; G05; G05D; G05D22/00; G05D22/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB116478A
Cited
US2650343A
Cited
US2702948A
Cited
US2852740A
Cited
US2755438A
Cited
US2824282A
Cited
US2802178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |