US2456019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor attachment for tractors
Assignee: Individual
•
Filing: 1947-02-12
•
Granted: 1948-12-14
•
Expires: 1967-02-12
Abstract
No abstract record available.
Inventors
- 👤 John J Pettipiece
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:35
CPC Classifications
A; A01; A01M; A01M7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US206451A
Cited
US707284A
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US1374274A
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US1465377A
Cited
US1538881A
Cited
US1648154A
Cited
US1754490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |