US2964181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grading and separating device
Assignee: Laitram Machinery Inc
•
Filing: 1956-05-17
•
Granted: 1960-12-13
•
Expires: 1976-05-17
Abstract
No abstract record available.
Inventors
- 👤 Le Roy E Demarest
- 👤 Feruand S Lapeyre
- 👤 James M Lapeyre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:34
CPC Classifications
A; A22; A22C; A22C29/00; A22C29/005; A22C29/02; Y; Y10; Y10S; Y10S209/00; Y10S209/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US755937A
Cited
GB191421977A
Cited
US1811991A
Cited
US1820773A
Cited
US2062946A
Cited
FR805542A
Cited
GB575454A
Cited
DE804493C
Cited
US2714214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |