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Patent US3549583A successfully refreshed from Google Patents.
US3549583A
Expired / Lapsed
US
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Polyurethane liquid containing compositions
Assignee: Nippon Paint Co Ltd
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Filing: 1967-12-12
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Granted: 1970-12-22
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Expires: 1987-12-12
Abstract
No abstract record available.
Inventors
- 👤 Nobuyoshi Nagata
- 👤 Ryuzo Mizuguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:36
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6216; C08G18/622; C08G18/6241; C08G18/6237; C09; C09D; C09D175/00; C09D175/04
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) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |