US3452931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural sprayer
Assignee: BUFFALO TURBINE AGRICULTURAL EQUIPMENT CO Inc
•
Filing: 1968-04-15
•
Granted: 1969-07-01
•
Expires: 1988-04-15
Abstract
No abstract record available.
Inventors
- 👤 Coyle E Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:22
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/0089; Y; Y10; Y10S; Y10S239/00; Y10S239/17
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
BE504592A
Cited
USRE20982E
Cited
US2979269A
Cited
US3029027A
Cited
US2986338A
Cited
US3133702A
Cited
US3192167A
Cited
FR1466620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |