US2431890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and receptacle for propagating plants
Assignee: Research Corp
•
Filing: 1942-08-01
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Granted: 1947-12-02
•
Expires: 1962-08-01
Abstract
No abstract record available.
Inventors
- 👤 Morris A Raines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
A; A01; A01H; A01H4/00; A01H4/005; Y; Y10; Y10S; Y10S47/00; Y10S47/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1994962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-01 | 1951-06-02 | 1951-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-01 | 1955-06-02 | 1955-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-01 | 1959-06-02 | 1959-12-02 | $7700.00 | Window Closed / Lapsed |