US2982394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil conditioning package
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1955-07-13
•
Granted: 1961-05-02
•
Expires: 1975-07-13
Abstract
No abstract record available.
Inventors
- 👤 Leo J Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:00
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/38; B65D65/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN COMBINATION, A PARTICULATE SOLID MATERIAL FOR SOIL CONDITIONING, SAID PARTICLES BEING PACKAGED IN A WATERSOLUBLE PROTECTIVE FILM AND WHICH FILM CONSISTS ESSENTIALLY OF A THIN, FLEXIBLE, WATER-SOLUBLE FILM COMPOSED ESSENTIALLY OF A DEXTRAN FILM-FORMING CONSTITUENT SELECTED FROM THE GROUP CONSISTING OF CARBOXYMETHYL DEXTRAN CONTAINING AN AVERAGE OF 1.0 TO 3.0 CARBOXYMETHYL GROUPS PER ANHYDROGLUCOPYRANOSIDIC UNIT, AND WATER-SOLUBLE SALTS OF SAID CARBOXYMETHYL DEXTRAN SAID DEXTRAN FILM-FORMING CONSTITUENT BEING PLASTICIZED BY THE ADDITION OF GLYCEROL.
Claim 2
Dependent Claim
74 words
IN COMBINATION, A PARTICULATE SOLID MATERIAL FOR SOIL CONDITIONING, SAID PARTICLES BEING PACKAGED IN A WATERSOLUBLE PROTECTIVE FILM AND WHICH FILM CONSISTS ESSENTIALLY OF A THIN, FLEXIBLE, WATER-SOLUBLE FILM COMPOSED ESSENTIALLY OF A DEXTRAN FILM-FORMING CONSTITUENT SELECTED FROM THE GROUP CONSISTING OF CARBOXYMETHYL DEXTRAN CONTAINING AN AVERAGE OF 1.0 TO 3.0 CARBOXYMETHYL GROUPS PER ANHYDROGLUCOPYRANOSIDIC UNIT, AND WATER-SOLUBLE SALTS OF SAID CARBOXYMETHYL DEXTRAN SAID DEXTRAN FILM-FORMING CONSTITUENT BEING PLASTICIZED BY THE ADDITION OF GLYCEROL.
References Cited (Backward Citations)
US1367725A
Cited
US2091993A
Cited
US2089217A
Cited
GB517820A
Cited
US2218592A
Cited
US2539395A
Cited
US2518135A
Cited
US2671779A
Cited
US2558042A
Cited
US2789915A
Cited
US2722311A
Cited
US2790721A
Cited
US2749277A
Cited
US2756160A
Cited
US2785977A
Cited
US2780888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |