Patent US3274731A successfully refreshed from Google Patents.
US3274731A
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Method of mulching
Assignee: Dow Chemical Co
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Filing: 1964-02-14
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Granted: 1966-09-27
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Expires: 1984-02-14
Abstract
No abstract record available.
Inventors
- 👤 Richard E Vigneault
- 👤 Kenneth C Finster
- 👤 John V Landry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:51
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/30; A01G13/32; A01G13/33; Y; Y10; Y10S; Y10S260/00; Y10S260/43
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
AN AGRICULTURAL METHOD WHICH COMPRISES PLACING AND MAINTAINING AROUND A PLANT, DURING THE GROWING SEASON, A MULCH COMPRISING A POLYMERIC MATERIAL CONSISTING ESSENTIALLY OF A SOLID, DEGRADABLE COPOLYMER OF ETHYLENE AND AN ETHYLENICALLY UNSATURATED CARBOXYLIC ACID, SAID ACID BEING PRESENT IN THE COPOLYMER IN AN AMOUNT FROM ABOUT 2 PERCENT TO ABOUT 20 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE COPOLYMER, AND SUBSEQUENTLY DISPOSED OF SAID MULCH BY TILLING IT INTO THE GROUND.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |