US2561516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trichloromethylalkenes
Assignee: Uniroyal Inc
•
Filing: 1948-02-20
•
Granted: 1951-07-24
•
Expires: 1968-02-20
Abstract
No abstract record available.
Inventors
- 👤 Elbert C Ladd
- 👤 Seaphes D Shinkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:14
CPC Classifications
C; C07; C07C; C07C25/00; C07C25/24; C07C17/00; C07C17/25; C07C205/00; C07C205/07; C07C205/11; C07C205/12; C07C21/00; C07C21/02; C07C21/04; C07C21/19; C07C22/00; C07C22/02; C07C22/04; C07C25/18; C07C47/00; C07C47/02; C07C47/14; C07C47/16; C07C47/20; C07C47/24; C07C49/00; C07C49/04; C07C49/16; C07C49/20; C07C49/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A TRICHLOROMETHYL OLEFINE CONTAINING A TERMINAL TRICHLOROMETHYL GROUP AND HAVING AND ETHYLENICALLY-BONDED CARBON ATOM IN THE BETA POSITION TO SAID TRICHLOROMETHYL GROUP, WHICH TRICHLOROMETHYL OLEFIN IS SELECTED FROM THE GROUP CONSISTING OF A TRICHLOROPENE BOILING AT 4447* C. AT 103 MM. HG PRESSURE, AND HAVING A REFRACTIVE INDEX OF ND20 1.4677-1.4678; A TRICHLORO2 - METHYL - 1 - BUTENE BOILING AT 89-91* C. AT 103 MM. HG PRESSURE, AND HAVING A REFRACTIVE INDEX OF APPROXIMATELY ND20 1.4747; AND A TRICHLORO - 2 - BUTENE BOILING AT 79.8-80.3* C. AT 103 MM. HG PRESSURE AND HAVING A REFRACTIVE INDEX OF APPROXIMATELY ND20 1.4819.
Claim 2
Dependent Claim
102 words
A TRICHLOROMETHYL OLEFINE CONTAINING A TERMINAL TRICHLOROMETHYL GROUP AND HAVING AND ETHYLENICALLY-BONDED CARBON ATOM IN THE BETA POSITION TO SAID TRICHLOROMETHYL GROUP, WHICH TRICHLOROMETHYL OLEFIN IS SELECTED FROM THE GROUP CONSISTING OF A TRICHLOROPENE BOILING AT 4447* C. AT 103 MM. HG PRESSURE, AND HAVING A REFRACTIVE INDEX OF ND20 1.4677-1.4678; A TRICHLORO2 - METHYL - 1 - BUTENE BOILING AT 89-91* C. AT 103 MM. HG PRESSURE, AND HAVING A REFRACTIVE INDEX OF APPROXIMATELY ND20 1.4747; AND A TRICHLORO - 2 - BUTENE BOILING AT 79.8-80.3* C. AT 103 MM. HG PRESSURE AND HAVING A REFRACTIVE INDEX OF APPROXIMATELY ND20 1.4819.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |