US2329433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tri-(beta-carboxyethyl)-acetone
Assignee: Resinous Products and Chemical Co
•
Filing: 1941-10-17
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Granted: 1943-09-14
•
Expires: 1961-10-17
Abstract
No abstract record available.
Inventors
- 👤 Herman A Bruson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:50
CPC Classifications
C; C07; C07C; C07C255/00; C07C51/00; C07C51/08; C07C59/00; C07C59/235; C07C59/347
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) | 1946-09-13 | 1947-03-15 | 1947-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-13 | 1951-03-15 | 1951-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-13 | 1955-03-15 | 1955-09-14 | $7700.00 | Window Closed / Lapsed |