Patent US3329322A successfully refreshed from Google Patents.
US3329322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material spreader
Assignee: HERD SEEDER CO Inc
•
Filing: 1965-12-16
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Granted: 1967-07-04
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Expires: 1985-12-16
Abstract
No abstract record available.
Inventors
- 👤 Elmer R Herd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:54
CPC Classifications
A; A01; A01C; A01C15/00; A01C15/005; A01C15/008
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |