Patent US3801299A successfully refreshed from Google Patents.
Patent US2558745A successfully refreshed from Google Patents.
US2558745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of selection of oriented seed
Assignee: —
•
Filing: —
•
Granted: 1951-07-03
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Expires: 1968-07-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:14
CPC Classifications
C; C30; C30B; C30B15/00; C30B29/00; C30B29/02; C30B29/06; C30B29/10; C30B29/16; C30B7/00; C30B7/10; C01; C01P; C01P2006/00; C01P2006/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2442755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |