Patent US3533985A successfully refreshed from Google Patents.
US3533985A
Expired / Lapsed
US
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Powdered heat curable epoxy resin compositions and their preparation
Assignee: Shell USA Inc
•
Filing: 1966-12-27
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Granted: 1970-10-13
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Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 William L Lantz
- 👤 Joseph P Manasia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:01
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/182; C08G59/184; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/5073; Y; Y10; Y10S; Y10S524/00; Y10S524/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3362922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |