Patent US2536275A successfully refreshed from Google Patents.
US3336129A
Expired / Lapsed
US
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Plant growth medium
Assignee: Union Carbide Corp
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Filing: 1963-03-22
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Granted: 1967-08-15
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Expires: 1983-03-22
Abstract
No abstract record available.
Inventors
- 👤 Richard A Herrett
- 👤 Paul A King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:11
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/40; A; A01; A01C; A01C1/00; A01C1/04; A01C1/046; A01G; A01G24/00; A01G24/10; A01G24/12; A01G24/15; A01G24/20; A01G24/28; C05; C05D; C05D9/00; C09K17/14; C09K17/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PLANT GROWTH MEDIUM COMPRISING: (1) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF SOIL, SAND, PEAT MOSS AND VERMICULITE, IN ADMIXTURE WITH (2) FROM ABOUT 0.001 TO ABOUT 5 WEIGHT PERCENT OF A PARTICULATE, WATER-INSOLUBLE, CROSS-LINKED, MATRIX OF POLYMERIC ALKYLENE ETHER HAVING THE ABILITY TO REVERSABLY SORB AND DESORB SUBSTANTIAL AMOUNTS OF SOLUTIONS AND SUSPENSIONS INTO THE POLYMERIC MATRIX, WHEREIN THE ALKYLENE-OXY GROUPS OF SAID POLYMERIC ALKYLENE ETHER CONTAIN FROM 2 TO 8 CARGON ATOMS.
Claim 2
Dependent Claim
78 words
A PLANT GROWTH MEDIUM COMPRISING: (1) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF SOIL, SAND, PEAT MOSS AND VERMICULITE, IN ADMIXTURE WITH (2) FROM ABOUT 0.001 TO ABOUT 5 WEIGHT PERCENT OF A PARTICULATE, WATER-INSOLUBLE, CROSS-LINKED, MATRIX OF POLYMERIC ALKYLENE ETHER HAVING THE ABILITY TO REVERSABLY SORB AND DESORB SUBSTANTIAL AMOUNTS OF SOLUTIONS AND SUSPENSIONS INTO THE POLYMERIC MATRIX, WHEREIN THE ALKYLENE-OXY GROUPS OF SAID POLYMERIC ALKYLENE ETHER CONTAIN FROM 2 TO 8 CARGON ATOMS.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |