US2644002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiophosphatosuccinimides
Assignee: Wyeth Holdings LLC
•
Filing: 1951-08-29
•
Granted: 1953-06-30
•
Expires: 1971-08-29
Abstract
No abstract record available.
Inventors
- 👤 Erick I Hoegberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:00
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/5537
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THIOPHOSPHATOSUCCINIMIDES OF THE GENERAL FORMULA
Claim 2
Dependent Claim
5 words
THIOPHOSPHATOSUCCINIMIDES OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2578652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |