Patent US3389128A successfully refreshed from Google Patents.
US3389128A
Expired / Lapsed
US
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Polymerization processes and catalytic composition of matter
Assignee: OI Glass Inc
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Filing: 1965-06-07
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Granted: 1968-06-18
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Expires: 1985-06-07
Abstract
No abstract record available.
Inventors
- 👤 John W Bayer
- 👤 William C Grinonneau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:25
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F4/00; C08F4/06; C08F4/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
19 words
A PROCESS FOR THE POLYMERIZATION OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS REPRESENTED BY THE 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) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |