US2560939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
- methylenebis
Assignee: —
•
Filing: —
•
Granted: 1951-07-17
•
Expires: 1968-07-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:45
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/34; C07C233/42; C07C231/00; C07C231/02; C07C233/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
THE COMPOUND 2,2-METHYLENEBIS(4-CHLORO6-ACETAMIDOPHENOL).
Claim 2
Dependent Claim
3 words
THE COMPOUND 2,2-METHYLENEBIS(4-CHLORO6-ACETAMIDOPHENOL).
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) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |