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Patent US3401148A successfully refreshed from Google Patents.
US3401148A
Expired / Lapsed
US
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Method of preparing sulfur-containing polyesters
Assignee: Borg Warner Corp
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Filing: 1964-12-31
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Granted: 1968-09-10
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Richard J Schlott
- 👤 Scardiglia Frank
- 👤 Eugene P Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:20
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/28; C08G63/00; C08G63/68; C08G63/688; C08G63/6884; C08G63/6886; C08G64/00; C08G75/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |