US3281987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil conditioning
Assignee: Union Carbide Corp
•
Filing: 1964-07-02
•
Granted: 1966-11-01
•
Expires: 1984-07-02
Abstract
No abstract record available.
Inventors
- 👤 David B Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:55
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/30; A01G13/35; C; C09; C09K; C09K17/00; C09K17/14; C09K17/18; C09K17/32; A01G2013/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE METHOD OF INHIBITING CRUSTING OF SURFACE SOILS WHICH CONSISTS OF APPLYING TO THE SOIL A SYNTHETIC ADDITIVE CHOSEN FROM THE GROUP CONSISTING OF CELLULOSE COMPOUNDS AND ALDEHYDE ADDUCTS THEREOF IN DOSES OF FROM ONE-HALF TO ONE HUNDRED POUNDS OF THE ADDITIVE PER ACRE OF SOIL TREATED.
Claim 2
Independent Claim
47 words
THE METHOD OF INHIBITING CRUSTING OF SURFACE SOILS WHICH CONSISTS OF APPLYING TO THE SOIL A SYNTHETIC ADDITIVE CHOSEN FROM THE GROUP CONSISTING OF CELLULOSE COMPOUNDS AND ALDEHYDE ADDUCTS THEREOF IN DOSES OF FROM ONE-HALF TO ONE HUNDRED POUNDS OF THE ADDITIVE PER ACRE OF SOIL TREATED.
References Cited (Backward Citations)
US2802303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |