US2561882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic ground clearing machine
Assignee: FRED J PATTON
•
Filing: 1946-04-02
•
Granted: 1951-07-24
•
Expires: 1966-04-02
Abstract
No abstract record available.
Inventors
- 👤 Matthew W Patton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:51
CPC Classifications
A; A01; A01D; A01D51/00; A01D51/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US514805A
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US1193475A
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US1399165A
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US1243516A
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US1375482A
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US1330547A
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US1729754A
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US1812942A
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US2175608A
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US2180269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |