US3523032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyepoxide with imidazole pre-catalyzed reinforcement material
Assignee: Air Products and Chemicals Inc
•
Filing: 1967-07-26
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Granted: 1970-08-04
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Expires: 1987-07-26
Abstract
No abstract record available.
Inventors
- 👤 Erich F Kujas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:52
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08J3/242; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/5073; C09; C09D; C09D163/00; C08J2363/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3122569A
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US2794754A
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US3030376A
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US3119711A
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US3135720A
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US3394105A
Cited
US3356645A
Cited
US3242244A
Cited
US3390007A
Cited
US3401146A
Cited
US3409592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |