US3236199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seed planter
Assignee: Union Carbide Corp
•
Filing: 1962-12-17
•
Granted: 1966-02-22
•
Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Charles E Gray
- 👤 John F Morgan
- 👤 O'neal Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:48
CPC Classifications
A; A01; A01C; A01C5/00; A01C5/04; A01C5/045; A01C7/00; A01C7/04; A01C7/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US169041A
Cited
US279221A
Cited
DE393445C
Cited
US1474599A
Cited
US1908255A
Cited
US2168855A
Cited
US2440846A
Cited
US2626578A
Cited
US2486462A
Cited
US2727476A
Cited
US2909869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |