US3254033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low temperature polymerization catalysts
Assignee: Union Carbide Corp
•
Filing: 1961-09-27
•
Granted: 1966-05-31
•
Expires: 1981-09-27
Abstract
No abstract record available.
Inventors
- 👤 Frank J Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:45
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOSITION COMPRISING AT LEAST ABOUT 0.1 MOLE OF PEROXYDICARBONATE OF THE FORMULA:
Claim 2
Dependent Claim
13 words
A COMPOSITION COMPRISING AT LEAST ABOUT 0.1 MOLE OF PEROXYDICARBONATE OF THE FORMULA:
References Cited (Backward Citations)
US3124561A
Cited
US2728756A
Cited
US2812308A
Cited
US3112279A
Cited
US3081348A
Cited
US3117112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |