Patent US3021642A successfully refreshed from Google Patents.
US3021642A
Expired / Lapsed
US
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Lawn mower attachment for distributing liquid
Assignee: Individual
•
Filing: 1959-10-22
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Granted: 1962-02-20
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Expires: 1979-10-22
Abstract
No abstract record available.
Inventors
- 👤 Bernard E Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:56
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/14; A01M; A01M21/00; A01M21/04; A01M21/043; A01D2101/00; Y; Y10; Y10S; Y10S56/00; Y10S56/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |