US3397860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for concrete pump or similar machine
Assignee: Case LLC
•
Filing: 1966-04-19
•
Granted: 1968-08-20
•
Expires: 1986-04-19
Abstract
No abstract record available.
Inventors
- 👤 Richard W Bushmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:25
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2069261A
Cited
US2598207A
Cited
US2676609A
Cited
FR1121902A
Cited
US2874925A
Cited
US2828101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |