US3219432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fertilizer composition containing condensation products of urea and aldehyde
Assignee: Hoechst AG
•
Filing: 1963-03-05
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Granted: 1965-11-23
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Expires: 1983-03-05
Abstract
No abstract record available.
Inventors
- 👤 Helmut K Schafer
- 👤 Kalk Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:47
CPC Classifications
C; C05; C05C; C05C9/00; C05C9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A FERTILIZING COMPOSITION CONTAINING CONDENSATION PRODUCTS OF UREA WITH AT LEST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF N-BUTYRALDEHYDE AND ISOBUTYRALDEHYDE, THE UREA AND THE ALDEHYDE BEING PRESENT IN A RATIO WITHIN THE RANGE OF 1.8:1 TO 2:1.
Claim 2
Dependent Claim
39 words
A FERTILIZING COMPOSITION CONTAINING CONDENSATION PRODUCTS OF UREA WITH AT LEST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF N-BUTYRALDEHYDE AND ISOBUTYRALDEHYDE, THE UREA AND THE ALDEHYDE BEING PRESENT IN A RATIO WITHIN THE RANGE OF 1.8:1 TO 2:1.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |