US2601620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for preparing grass seed for planting
Assignee: Individual
•
Filing: 1947-07-28
•
Granted: 1952-06-24
•
Expires: 1967-07-28
Abstract
No abstract record available.
Inventors
- 👤 Preston F Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:48
CPC Classifications
A; A01; A01C; A01C1/00; A01C1/04; A01G; A01G20/00; Y; Y10; Y10S; Y10S47/00; Y10S47/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |