US2698114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planter valve
Assignee: Allis Chalmers Corp
•
Filing: 1949-03-25
•
Granted: 1954-12-28
•
Expires: 1969-03-25
Abstract
No abstract record available.
Inventors
- 👤 August G Buhr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:35
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08; A01C7/10; Y; Y10; Y10S; Y10S111/00; Y10S111/927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US48432A
Cited
US107975A
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US435691A
Cited
GB189924042A
Cited
US966564A
Cited
US1197292A
Cited
US1703467A
Cited
US2332713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |