US2562893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hexachloroendomethylenedi-alkoxytetrahydroindanes
Assignee: Rohm and Haas Co
•
Filing: 1949-06-22
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Granted: 1951-08-07
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Expires: 1969-06-22
Abstract
No abstract record available.
Inventors
- 👤 John W Dawson
- 👤 Willard J Croxall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:00
CPC Classifications
C; C07; C07C; C07C23/00; C07C23/18; C07C23/20; C07C23/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
AS NEW CHEMICAL SUBSTANCES 2,3,4,5,6,7HEXACHLORO - 4,7 - ENDOMETHYLENE - 8,8- DIALKOXY3A,7,7A-TETRADROINDANES IN WHICH THE ALKOXY GROUP CONTAINS NOT OVER EIGHT CARBON ATOMS.
Claim 2
Dependent Claim
23 words
AS NEW CHEMICAL SUBSTANCES 2,3,4,5,6,7HEXACHLORO - 4,7 - ENDOMETHYLENE - 8,8- DIALKOXY3A,7,7A-TETRADROINDANES IN WHICH THE ALKOXY GROUP CONTAINS NOT OVER EIGHT CARBON ATOMS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |