US2802016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarboxylates
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-03-04
•
Granted: 1957-08-06
•
Expires: 1973-03-04
Abstract
No abstract record available.
Inventors
- 👤 Dazzi Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:43
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
POLYCARBOXYLATE HAVING THE FORMULA
Claim 2
Dependent Claim
4 words
POLYCARBOXYLATE HAVING THE FORMULA
References Cited (Backward Citations)
US2188888A
Cited
US2310395A
Cited
US2408905A
Cited
US2396763A
Cited
US2510915A
Cited
US2545811A
Cited
US2553996A
Cited
US2569420A
Cited
US2687421A
Cited
US2630441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |