US2782227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarboxylates
Assignee: Monsanto Chemicals Ltd
•
Filing: 1950-08-28
•
Granted: 1957-02-19
•
Expires: 1970-08-28
Abstract
No abstract record available.
Inventors
- 👤 Dazzi Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:57
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/63; C07C309/64; C07C309/65; C07C69/00; C07C69/52; C07C69/593; C07C69/60; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
POLYCARBOXYLIC COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
POLYCARBOXYLIC COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
US2159008A
Cited
US2380699A
Cited
US2414022A
Cited
US2423365A
Cited
US2510915A
Cited
US2485281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |