US3493414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy/polyester compositions
Assignee: NL SPENCER KELLOG Inc
•
Filing: 1967-10-12
•
Granted: 1970-02-03
•
Expires: 1987-10-12
Abstract
No abstract record available.
Inventors
- 👤 John D Hastings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:14
CPC Classifications
C; C08; C08L; C08L63/00; C09; C09D; C09D167/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24438; Y10T428/24446; Y10T428/26; Y10T428/263; Y10T428/264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2691004A
Cited
US3089863A
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US2967840A
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US3027341A
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US3055869A
Cited
US3218274A
Cited
US3230162A
Cited
US3196119A
Cited
US3397255A
Cited
US3419510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |