US2522053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorinated methyl siloxanes
Assignee: Corning Glass Works
•
Filing: 1950-03-22
•
Granted: 1950-09-12
•
Expires: 1970-03-22
Abstract
No abstract record available.
Inventors
- 👤 Mcgregor Rob Roy
- 👤 Warrick Earl Leathen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:06
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/385
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A CYCLIC CHLORINATED DIMETHYLSILOXANE HAVING FROM 1 TO 10 CHLORINE ATOMS PER CYCLIC UNIT.
Claim 2
Dependent Claim
14 words
A CYCLIC CHLORINATED DIMETHYLSILOXANE HAVING FROM 1 TO 10 CHLORINE ATOMS PER CYCLIC UNIT.
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) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |