Patent US3514931A successfully refreshed from Google Patents.
US3514931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grass clog clearing device for rotory mowers
Assignee: FINN O SOLHEIM
•
Filing: 1967-11-03
•
Granted: 1970-06-02
•
Expires: 1987-11-03
Abstract
No abstract record available.
Inventors
- 👤 Finn O Solheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:16
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/06; A01D43/063; A01D43/0631; A01D2101/00; A01D34/00; A01D34/01; A01D34/412; A01D34/63
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |