US2551378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylene-bis-carbamylamino-and guanidylcyclohexanes
Assignee: EIDP Inc
•
Filing: 1948-11-17
•
Granted: 1951-05-01
•
Expires: 1968-11-17
Abstract
No abstract record available.
Inventors
- 👤 Kirby James Emory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:25
CPC Classifications
C; C07; C07C; C07C335/00; C07C335/04; C07C335/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A SYMMETRICAL COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
6 words
A SYMMETRICAL COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2145242A
Cited
US2347827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |