US3494891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxide resin-amido-amine compositions
Assignee: Hi Tek Polymers Inc
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Filing: 1968-08-28
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Granted: 1970-02-10
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Expires: 1988-08-28
Abstract
No abstract record available.
Inventors
- 👤 Wayne F Mcwhorter
- 👤 Harry O Kirwan
- 👤 Charles E Banfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:10
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/54; C08L; C08L63/00
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) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |