Patent US3371072A successfully refreshed from Google Patents.
US3371072A
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US
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Sulphur resins
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1966-03-21
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Granted: 1968-02-27
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Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 Signouret Jean-Baptiste
- 👤 Barge Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:34
CPC Classifications
C; C08; C08F; C08F283/00; C04; C04B; C04B24/00; C04B24/16; C04B24/20; C04B28/00; C04B28/36; C08G; C08G75/00; C08G75/02; C08G75/04; C08G75/045
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |