US2539934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mowing machine
Assignee: Individual
•
Filing: 1948-02-27
•
Granted: 1951-01-30
•
Expires: 1968-02-27
Abstract
No abstract record available.
Inventors
- 👤 Smith Alexander
- 👤 Lucius N Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:22
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D34/66; A01D34/661
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US119398A
Cited
US1397365A
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US1294346A
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US1745069A
Cited
US1533701A
Cited
US1710749A
Cited
GB339618A
Cited
GB416140A
Cited
US2197561A
Cited
US2193712A
Cited
US2263431A
Cited
US2344663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |