Patent US2709174A successfully refreshed from Google Patents.
US2709174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing esters of titanic acid
Assignee: Ellis Foster Co
•
Filing: 1945-11-16
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Granted: 1955-05-24
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Expires: 1965-11-16
Abstract
No abstract record available.
Inventors
- 👤 John B Rust
- 👤 Spialter Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:25
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
THE METHOD OF PREPARING HALO ESTERS OF TITANIC ACIDS WHICH COMPRISES REACTING TITANIUM TETRACHLORIDE WITH AN EPOXYALKANE.
Claim 2
Independent Claim
17 words
THE METHOD OF PREPARING HALO ESTERS OF TITANIC ACIDS WHICH COMPRISES REACTING TITANIUM TETRACHLORIDE WITH AN EPOXYALKANE.
References Cited (Backward Citations)
GB512452A
Cited
FR582412A
Cited
US1944274A
Cited
US2224359A
Cited
US2160273A
Cited
US2242400A
Cited
US2258718A
Cited
US2381138A
Cited
US2381137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |