US2830050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Symmetrical substituted aminoalkylhydrazines and their salts
Assignee: LAKESIDE LAB Inc
•
Filing: 1955-02-15
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Granted: 1958-04-08
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Expires: 1975-02-15
Abstract
No abstract record available.
Inventors
- 👤 John H Biel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:14
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
A MEMBER OF THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE:
Claim 2
Dependent Claim
11 words
A MEMBER OF THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE:
Claim 3
Dependent Claim
3 words
N,N''-BIS-(2-(N-MORPHOLINO) ETHYL) HYDRAZINE.
Claim 4
Dependent Claim
3 words
N,N''-BIS-(2-(N-MORPHOLINO) ETHYL) HYDRAZINE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |