US2644835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupled products
Assignee: Uniroyal Inc
•
Filing: 1947-06-05
•
Granted: 1953-07-07
•
Expires: 1967-06-05
Abstract
No abstract record available.
Inventors
- 👤 Elbert C Ladd
- 👤 Sargent Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:49
CPC Classifications
C; C07; C07C; C07C21/00; C07C21/02; C07C21/19; C07C17/00; C07C17/23; C07C17/26; C07C17/263; C07C17/269; C07C19/00; C07C19/01; C07C19/08; C07C19/14; C07C21/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
COMPOUNDS HAVING THE GENERAL FORMULA (R-CH2-CX2-)2 WHEREIN R IS A SOLELY ALIPHATIC RADICAL WHICH IS ATTACHED TO THE CH2 THROUGH A CARBON ATOM, AND EACH X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE.
Claim 2
Dependent Claim
36 words
COMPOUNDS HAVING THE GENERAL FORMULA (R-CH2-CX2-)2 WHEREIN R IS A SOLELY ALIPHATIC RADICAL WHICH IS ATTACHED TO THE CH2 THROUGH A CARBON ATOM, AND EACH X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE.
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) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |