US2723494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating lawns with top dressing
Assignee: PARKER SWEEPER Co
•
Filing: 1949-12-05
•
Granted: 1955-11-15
•
Expires: 1969-12-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin D Parker
- 👤 Earl E Stelzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:17
CPC Classifications
A; A01; A01G; A01G20/00; A01G20/40; A01G20/43; A01G20/30; Y; Y10; Y10S; Y10S56/00; Y10S56/02
Claims Analysis
Total Claims: 0
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US2443785A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |