US2820703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing compost
Assignee: Wyeth Holdings LLC
•
Filing: 1954-05-19
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Granted: 1958-01-21
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Expires: 1974-05-19
Abstract
No abstract record available.
Inventors
- 👤 Dresser Wilfred Carlton
- 👤 Jacobson Robert Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:24
CPC Classifications
C; C05; C05F; C05F17/00; Y; Y02; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y02W; Y02W30/00; Y02W30/40; Y10; Y10S; Y10S71/00; Y10S71/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A METHOD OF COMPOSTING ORGANIC WASTE MATERIAL WHICH COMPRISES THE STEPS OF MIXING A QUANTITY OF PARTIALLY COMPOSTED ORGANIC MATERIAL WITH A QUANTITY OF SUBSTANTIALLY UNDECOMPOSED ORGANIC MATERIAL AND ALLOWING THE MIXTURE TO DIGEST UNTIL THE CHEMICAL OXYGEN DEMAND OF THE MIXTURE HAS DECREASED SUBSTANTIALLY, DIVIDING SAID PARTIALLY DECOMPOSED MIXTURE, MIXING A PART OF SAID DECOMPOSED MATERIAL WITH SUBSTANTIALLY UNDECOMPOSED ORGANIC WASTE MATERIAL AND ALLOWING SAID MIXTURE TO DIGEST, MIXING ANOTHER PART OF SAID PARTIALLY DECOMPOSED MATERIAL WITH ORGANIC WASTE MATERIAL WHICH HAS A LOWER CHEMICAL OXYGEN DEMAND AND ALLOWING SAID MIXTURE TO DIGEST UNTIL IT HAS A SUBSTANTIALLY LOWER CHEMICAL OXYGEN DEMAND, DIVIDING SAID DECOMPOSED MATERIAL AND CONTINUING THE PROCESS OF MIXING PART OF THE DIGESTED MATERIAL WITH MATERIAL OF HIGHER CHEMICAL OXYGEN DEMAND ORGANIC MATERIAL AND PART WITH MATERIAL OF LOWER CHEMICAL OXYGEN DEMAND AND DIGESTING UNTIL THE LATTER IS COMPOSED.
Claim 2
Independent Claim
143 words
A METHOD OF COMPOSTING ORGANIC WASTE MATERIAL WHICH COMPRISES THE STEPS OF MIXING A QUANTITY OF PARTIALLY COMPOSTED ORGANIC MATERIAL WITH A QUANTITY OF SUBSTANTIALLY UNDECOMPOSED ORGANIC MATERIAL AND ALLOWING THE MIXTURE TO DIGEST UNTIL THE CHEMICAL OXYGEN DEMAND OF THE MIXTURE HAS DECREASED SUBSTANTIALLY, DIVIDING SAID PARTIALLY DECOMPOSED MIXTURE, MIXING A PART OF SAID DECOMPOSED MATERIAL WITH SUBSTANTIALLY UNDECOMPOSED ORGANIC WASTE MATERIAL AND ALLOWING SAID MIXTURE TO DIGEST, MIXING ANOTHER PART OF SAID PARTIALLY DECOMPOSED MATERIAL WITH ORGANIC WASTE MATERIAL WHICH HAS A LOWER CHEMICAL OXYGEN DEMAND AND ALLOWING SAID MIXTURE TO DIGEST UNTIL IT HAS A SUBSTANTIALLY LOWER CHEMICAL OXYGEN DEMAND, DIVIDING SAID DECOMPOSED MATERIAL AND CONTINUING THE PROCESS OF MIXING PART OF THE DIGESTED MATERIAL WITH MATERIAL OF HIGHER CHEMICAL OXYGEN DEMAND ORGANIC MATERIAL AND PART WITH MATERIAL OF LOWER CHEMICAL OXYGEN DEMAND AND DIGESTING UNTIL THE LATTER IS COMPOSED.
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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) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |