US2464980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn mower propulsion
Assignee: Individual
•
Filing: 1945-06-07
•
Granted: 1949-03-22
•
Expires: 1965-06-07
Abstract
No abstract record available.
Inventors
- 👤 Kuehn Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:00
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/46; A01D34/47; A01D34/475; A01D2101/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1022291A
Cited
US1085379A
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US1417485A
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US1504863A
Cited
US1454698A
Cited
FR539091A
Cited
US1866380A
Cited
US2133512A
Cited
US2209356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |