US3141015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hgmopiperazinoalkyl estess
Assignee: —
•
Filing: —
•
Granted: 1964-07-14
•
Expires: 1981-07-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:55
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
4-FORMYL-5-METHYL HOMOPIPERAZINE. 2. 1-CARBOMETHOXYETHYL-4-FORMYL-5-METHYL HOMOPIPERAZINE.
Claim 2
Dependent Claim
5 words
4-FORMYL-5-METHYL HOMOPIPERAZINE. 2. 1-CARBOMETHOXYETHYL-4-FORMYL-5-METHYL HOMOPIPERAZINE.
References Cited (Backward Citations)
US2419366A
Cited
US2475852A
Cited
US2695301A
Cited
US2953565A
Cited
US2957872A
Cited
US2926172A
Cited
US2948731A
Cited
US2993900A
Cited
US2957867A
Cited
US2917536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |