US2666772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric titanium ester anhydrides
Assignee: Monsanto Chemicals Ltd
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Filing: 1951-01-27
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Granted: 1954-01-19
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Expires: 1971-01-27
Abstract
No abstract record available.
Inventors
- 👤 Boyd Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:39
CPC Classifications
C; C08; C08G; C08G79/00; C07; C07F; C07F7/00; C07F7/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A PROCESS WHICH COMPRISES REACTING, UNDER ANHYDROUS CONDITIONS, A STRAIGHT CHAIN CONDENSATION POLYMER OF AN ORGANIC ESTER OF ORTHOTITANIC ACID HAVING THE FORMULA:
Claim 2
Dependent Claim
23 words
A PROCESS WHICH COMPRISES REACTING, UNDER ANHYDROUS CONDITIONS, A STRAIGHT CHAIN CONDENSATION POLYMER OF AN ORGANIC ESTER OF ORTHOTITANIC ACID HAVING THE FORMULA:
References Cited (Backward Citations)
US2489651A
Cited
US2621193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |