US3380237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lettuce harvester
Assignee: University of California Berkeley
•
Filing: 1964-01-03
•
Granted: 1968-04-30
•
Expires: 1984-01-03
Abstract
No abstract record available.
Inventors
- 👤 Roger E Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:47
CPC Classifications
A; A01; A01D; A01D45/00; A01D45/26; A01D45/263; Y; Y10; Y10S; Y10S56/00; Y10S56/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A LETTUCE HARVESTER COMPRISING A FRAME ADAPTED TO BE ADVANCED OVER A LETTUCE HEAD, MEANS ON SAID FRAME FOR CONTACTING THE TOP OF SAID LETTUCE HEAD AND ESTABLISHING THE PARTICULAR VERTICAL HEIGHT OF SAID TOP OF SAID LETTUCE HEAD, A LETTUCE HEAD CUTTER ON SAID FRAME, AND MEANS ON SAID FRAME RESPONSIVE TO VERTICAL MOVEMENT OF SAID CONTACTING MEANS ONLY ABOVE SAID PARTICULAR HEIGHT FOR OPERATING SAID CUTTER TO SEVER SAID LETTUCE HEAD.
Claim 2
Dependent Claim
73 words
A LETTUCE HARVESTER COMPRISING A FRAME ADAPTED TO BE ADVANCED OVER A LETTUCE HEAD, MEANS ON SAID FRAME FOR CONTACTING THE TOP OF SAID LETTUCE HEAD AND ESTABLISHING THE PARTICULAR VERTICAL HEIGHT OF SAID TOP OF SAID LETTUCE HEAD, A LETTUCE HEAD CUTTER ON SAID FRAME, AND MEANS ON SAID FRAME RESPONSIVE TO VERTICAL MOVEMENT OF SAID CONTACTING MEANS ONLY ABOVE SAID PARTICULAR HEIGHT FOR OPERATING SAID CUTTER TO SEVER SAID LETTUCE HEAD.
References Cited (Backward Citations)
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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) | 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 |