Patent US2520318A successfully refreshed from Google Patents.
US2520318A
Expired / Lapsed
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Method of making mushroom spawn
Assignee: Lescarboura Spawn Co
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Filing: 1944-03-14
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Granted: 1950-08-29
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Expires: 1964-03-14
Abstract
No abstract record available.
Inventors
- 👤 Lescarboura Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:29
CPC Classifications
A; A01; A01G; A01G18/00; A01G18/40; A01G18/20; A01G18/30; A01G18/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
THE METHOD OF MAKING MUSHROOM SPAWN SUBSTRATE FROM CEREAL GRAINS COMPRISING COMPLETELY COOKING AND SWELLING THE GRAINS IN THE PRESENCE OF WATER, CAUSING THE COOKED AND SWOLLEN GRAINS TO BE SUBSTANTIALLY FREE OF ADHERING WATER, ENCLOSING SAID GRAINS AGAINST INGRESS OF CONTAMINATING ORGANISMS, AND THEN STERILIZING THE GRAINS WHILE SO ENCLOSED.
Claim 2
Independent Claim
51 words
THE METHOD OF MAKING MUSHROOM SPAWN SUBSTRATE FROM CEREAL GRAINS COMPRISING COMPLETELY COOKING AND SWELLING THE GRAINS IN THE PRESENCE OF WATER, CAUSING THE COOKED AND SWOLLEN GRAINS TO BE SUBSTANTIALLY FREE OF ADHERING WATER, ENCLOSING SAID GRAINS AGAINST INGRESS OF CONTAMINATING ORGANISMS, AND THEN STERILIZING THE GRAINS WHILE SO ENCLOSED.
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) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |