US2744943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methacrylamidoacylguanamines
Assignee: Rohm and Haas Co
•
Filing: 1954-08-18
•
Granted: 1956-05-08
•
Expires: 1974-08-18
Abstract
No abstract record available.
Inventors
- 👤 Leo S Luskin
- 👤 Benneville Peter L De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:04
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/149; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60; C08G; C08G12/00; C08G12/02; C08G12/26; C08G12/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A COMPOUND FROM THE CLASS CONSISTING OF CHEMICAL SUBSTANCES OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOUND FROM THE CLASS CONSISTING OF CHEMICAL SUBSTANCES OF THE FORMULA
References Cited (Backward Citations)
US2459397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |