US2806773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural granule
Assignee: 3M Co
•
Filing: 1953-11-18
•
Granted: 1957-09-17
•
Expires: 1973-11-18
Abstract
No abstract record available.
Inventors
- 👤 Gordon R Pole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:20
CPC Classifications
C; C05; C05D; C05D9/00; C05D9/02; C05C; C05C9/00; C05C9/02; Y; Y10; Y10S; Y10S71/00; Y10S71/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
A METHOD OF UNFORMLY CONTROLLABLY APPLYING FINELY DIVIDED TRACE ELEMENT METERIALS TO MEDIA POSITIVELY AFFECTED THEREBY, WHICH METHOD INVOLVES APPLYING TO SAID MEDIA A PLURALITY OF FREE-FLOWING COATED GRANULES, EACH GRAMULE COMPRISING A SMALL NON-FLOWING COATED GRANULES, EACH RIER BASE GRANULE HAVING AN ADHERENT COATING OVER THE SURFACE THEREOF, SAID COATING INCLUDING FINELY DIVIDED TRACE ELEMENT METERIALS AS ONE CONSTITUENT UNIFORMLY DISPERSED THROUGHOUT A TACK-FREE NON-HYSROSCOPIC ABRASIBE-RISISTANT FILM-FORMING BINDER AS A SECOND CONSTITUENT, ONE OF SAID COATING CONSTITUENTS BEING ESSENTIALLY INSOLUBLE IN WATER, SAID BASE GRANULE HAVING A SIZE OF AT LEAST ABOUT 60 MESH AND COMPRISING A MAJOR PROPORTION OF THE COAT GRANULE, SAID BINDER BEING PRESENT IN AN AMOUNT PERMITING HANDLING OF A MASS OF THE COAT GRANULES WITHOUT SUBSTANTIAL CHALKING AND WITHOUT SUBSTANTIALLY WEARING AWAY THE COATING BY MUTAL ABROSION OF THE GRANULES, SAID TRACE ELEMENT MATERIALS FUTHER BEING AVAILABLE TO ACTION BY SOIL SULOTIONS, AND AT LEAST SLOWLY SOLUBLE IN IONIC FROM IN SAID SOLUTIONS, THE TRACE EMEMENTS OF SAID FINELY DIVIDED TRACE ELEMENT METERIALS BEING PRESENT IN AN AMOUNT OF AT LEAST ABOUT 2% BY WEIGHT OF THE COATED GRANULE, THE RESULTING COATED GRANULE BRING SUBSTANTIALLY NON-HYDROSCOPIC AND OF A SIZE OF AT LEAST ABOUT 48 MESH.
Claim 2
Independent Claim
202 words
A METHOD OF UNFORMLY CONTROLLABLY APPLYING FINELY DIVIDED TRACE ELEMENT METERIALS TO MEDIA POSITIVELY AFFECTED THEREBY, WHICH METHOD INVOLVES APPLYING TO SAID MEDIA A PLURALITY OF FREE-FLOWING COATED GRANULES, EACH GRAMULE COMPRISING A SMALL NON-FLOWING COATED GRANULES, EACH RIER BASE GRANULE HAVING AN ADHERENT COATING OVER THE SURFACE THEREOF, SAID COATING INCLUDING FINELY DIVIDED TRACE ELEMENT METERIALS AS ONE CONSTITUENT UNIFORMLY DISPERSED THROUGHOUT A TACK-FREE NON-HYSROSCOPIC ABRASIBE-RISISTANT FILM-FORMING BINDER AS A SECOND CONSTITUENT, ONE OF SAID COATING CONSTITUENTS BEING ESSENTIALLY INSOLUBLE IN WATER, SAID BASE GRANULE HAVING A SIZE OF AT LEAST ABOUT 60 MESH AND COMPRISING A MAJOR PROPORTION OF THE COAT GRANULE, SAID BINDER BEING PRESENT IN AN AMOUNT PERMITING HANDLING OF A MASS OF THE COAT GRANULES WITHOUT SUBSTANTIAL CHALKING AND WITHOUT SUBSTANTIALLY WEARING AWAY THE COATING BY MUTAL ABROSION OF THE GRANULES, SAID TRACE ELEMENT MATERIALS FUTHER BEING AVAILABLE TO ACTION BY SOIL SULOTIONS, AND AT LEAST SLOWLY SOLUBLE IN IONIC FROM IN SAID SOLUTIONS, THE TRACE EMEMENTS OF SAID FINELY DIVIDED TRACE ELEMENT METERIALS BEING PRESENT IN AN AMOUNT OF AT LEAST ABOUT 2% BY WEIGHT OF THE COATED GRANULE, THE RESULTING COATED GRANULE BRING SUBSTANTIALLY NON-HYDROSCOPIC AND OF A SIZE OF AT LEAST ABOUT 48 MESH.
References Cited (Backward Citations)
US1316396A
Cited
US847749A
Cited
US959841A
Cited
US1399660A
Cited
US1966947A
Cited
US2008469A
Cited
US2030461A
Cited
US2280451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |