US3412073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerizing pivalolactone
Assignee: EIDP Inc
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Filing: 1965-12-28
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Granted: 1968-11-19
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Expires: 1985-12-28
Abstract
No abstract record available.
Inventors
- 👤 Hogsed Milton Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:33
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/82; C08G63/823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PROCESS FOR POLYMERIZING PIVALOLACTONE COMPRISING MIXING SAID LACTONE WITH TRIBENZLSTIBINE AND HEATING THE MIXTURE AT A TEMPERATURE IN THE RANGE OF ABOUT 50* TO ABOUT 300*C. UNTIL POPYPIVALOLACETONE IS FORMED.
Claim 2
Dependent Claim
31 words
A PROCESS FOR POLYMERIZING PIVALOLACTONE COMPRISING MIXING SAID LACTONE WITH TRIBENZLSTIBINE AND HEATING THE MIXTURE AT A TEMPERATURE IN THE RANGE OF ABOUT 50* TO ABOUT 300*C. UNTIL POPYPIVALOLACETONE IS FORMED.
References Cited (Backward Citations)
US3268486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |