Patent US5976162A successfully refreshed from Google Patents.
Patent US3489631A successfully refreshed from Google Patents.
US3489631A
Expired / Lapsed
US
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Method for bonding polyurethane to plastic material
Assignee: Polysar Ltd
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Filing: 1965-03-04
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Granted: 1970-01-13
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Expires: 1985-03-04
Abstract
No abstract record available.
Inventors
- 👤 Wilson S Chen
- 👤 Lawrence P Blachman
- 👤 Walter J Focht Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:50
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/10; B05D7/00; B05D7/02; B29; B29C; B29C48/00; B29C48/15; B29C48/151; C; C08; C08L; C08L75/00; C08L75/04; F; F16; F16L; F16L11/00; F16L11/04; B05D2201/00; B05D2201/02; B05D2254/00; B05D2254/02; B05D2503/00; B29C48/03; B29C48/09; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31562
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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |