US2833688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition products
Assignee: Monsanto Chemicals Ltd
•
Filing: 1955-12-12
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Granted: 1958-05-06
•
Expires: 1975-12-12
Abstract
No abstract record available.
Inventors
- 👤 Van R Gaertner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:04
CPC Classifications
C; C07; C07D; C07D227/00; C07D227/02; C07D227/06; B; B32; B32B; B32B27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
ADDUCTS IN WHICH 2 MOLES OF A HYDROCARBON SUBSTITUTED HYDRAZINE WHICH IS FREE OF NON-BENZENOID UNSATURATION AND HAS FROM 1 TO 12 CARBON ATOMS ARE COMBINED WITH ONE MOLE OF A DIENIC SULTONE OF THE FORMULA
Claim 2
Dependent Claim
36 words
ADDUCTS IN WHICH 2 MOLES OF A HYDROCARBON SUBSTITUTED HYDRAZINE WHICH IS FREE OF NON-BENZENOID UNSATURATION AND HAS FROM 1 TO 12 CARBON ATOMS ARE COMBINED WITH ONE MOLE OF A DIENIC SULTONE OF THE FORMULA
References Cited (Backward Citations)
US2566810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |