Patent US3130185A successfully refreshed from Google Patents.
US3130185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trialkylboroxines as polymerization catalysts
Assignee: Union Carbide Corp
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Filing: 1960-09-19
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Granted: 1964-04-21
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Expires: 1980-09-19
Abstract
No abstract record available.
Inventors
- 👤 Frank J Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:31
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/44; C08F4/52; C08F4/06; C08F4/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A PROCESS FOR THE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
13 words
A PROCESS FOR THE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS HAVING THE GENERAL FORMULA
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |