US3454606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isocyanatophenylsulfonyl isocyanates
Assignee: Union Carbide Corp
•
Filing: 1963-11-14
•
Granted: 1969-07-08
•
Expires: 1983-11-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas K Brotherton
- 👤 John W Lynn
- 👤 John Smith Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:53
CPC Classifications
C; C07; C07C; C07C311/00; C07C311/65; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/775
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
2 words
M-ISOCYANATOPHENYLSULFONYL ISOCYANATE.
Claim 2
Dependent Claim
2 words
M-ISOCYANATOPHENYLSULFONYL ISOCYANATE.
Claim 3
Dependent Claim
2 words
P-ISOCYANATOPHENYLSULFONYL ISOCYANATE.
Claim 4
Dependent Claim
2 words
P-ISOCYANATOPHENYLSULFONYL ISOCYANATE.
References Cited (Backward Citations)
US2225661A
Cited
US2394597A
Cited
US2542596A
Cited
US2542597A
Cited
GB692360A
Cited
US2611782A
Cited
US2929800A
Cited
US2866774A
Cited
US3121102A
Cited
US3002982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |