Patent US2580236A successfully refreshed from Google Patents.
US2580236A
Expired / Lapsed
US
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Turf penetrating machine and element therefor
Assignee: Individual
•
Filing: 1947-10-09
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Granted: 1951-12-25
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Expires: 1967-10-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Mascaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:13
CPC Classifications
A; A01; A01B; A01B45/00; A01B45/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US273021A
Cited
US560033A
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US1125409A
Cited
GB191413394A
Cited
US1572431A
Cited
GB260407A
Cited
US2214702A
Cited
US2267943A
Cited
US2325997A
Cited
US2427369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |