US2851171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus
Assignee: JOURDAN CONCRETE PIPE CO
•
Filing: 1955-07-25
•
Granted: 1958-09-09
•
Expires: 1975-07-25
Abstract
No abstract record available.
Inventors
- 👤 Howard W Martin
- 👤 Robert B Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:56
CPC Classifications
G; G01; G01G; G01G13/00; G01G13/16; G01G13/18; E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/283; E02F3/36; E02F3/40; E02F3/407; E02F3/4075; E02F3/42; E02F3/422; G01G19/00; G01G19/08; G01G19/10
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |