US3380388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control system for concrete pump
Assignee: Individual
•
Filing: 1966-02-03
•
Granted: 1968-04-30
•
Expires: 1986-02-03
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Sherrod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:19
CPC Classifications
F; F04; F04B; F04B15/00; F04B15/02; F04B15/023; F01; F01L; F01L25/00; F01L25/08; F04B49/00; F04B49/06; F04B9/00; F04B9/08; F04B9/10; F04B9/109; F04B9/117; F04B9/1172; F04B9/1174; Y; Y10; Y10S; Y10S417/00; Y10S417/90
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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |