US2103265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic acid derivatives
Assignee: ER Squibb and Sons LLC
•
Filing: 1933-09-12
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Granted: 1937-12-28
•
Expires: 1953-09-12
Abstract
No abstract record available.
Inventors
- 👤 William A Lott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:57
CPC Classifications
C; C07; C07C; C07C233/00; C07C69/00; C07C69/52; C07C69/533; C07C69/54; C07C69/76; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34
Claims Analysis
Total Claims: 0
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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) | 1940-12-27 | 1941-06-28 | 1941-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-12-27 | 1945-06-28 | 1945-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-12-27 | 1949-06-28 | 1949-12-28 | $7700.00 | Window Closed / Lapsed |