US3421657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Produce vendor with multiple conveyor and holdback means
Assignee: LLOYD E LARSON
•
Filing: 1966-11-10
•
Granted: 1969-01-14
•
Expires: 1986-11-10
Abstract
No abstract record available.
Inventors
- 👤 Lloyd E Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:09
CPC Classifications
G; G07; G07F; G07F11/00; G07F11/02; G07F11/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US905401A
Cited
US1050268A
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US1729886A
Cited
US2462276A
Cited
US2719651A
Cited
US2680051A
Cited
US3237749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |