US2634290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of trichloroacetic acid
Assignee: Occidental Chemical Corp
•
Filing: 1951-05-05
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Granted: 1953-04-07
•
Expires: 1971-05-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Sonia
- 👤 Eric H Scremin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:16
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/62; C07C69/63
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
36 words
TRICHLOROACETIC ACID DIESTERS OF DIHYDROXY ALIPHATIC ALCOHOLS SELECTED FROM THE GROUP CONSISTING OF ALKYLENE GLYCOLS AND ALKYLENE GLYCOL ETHERS, WHEREIN THE NUMBER OF CARNON ATOMS CONTAINED IN THE ALKYLENE GROUP IS FROM TWO TO SIX, INCLUSIVE.
References Cited (Backward Citations)
US2272400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |