US2834800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic acid compounds
Assignee: Dow Chemical Co
•
Filing: 1956-08-17
•
Granted: 1958-05-13
•
Expires: 1976-08-17
Abstract
No abstract record available.
Inventors
- 👤 Walter B Trapp
- 👤 Donald E Pletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:49
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/34; C; C07; C07C; C07C255/00; C07C255/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE STRUCTURE
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE STRUCTURE
References Cited (Backward Citations)
US2683659A
Cited
US2759011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |