US3533901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of polyurethane foam laminates and product produced thereby
Assignee: Honeywell International Inc
•
Filing: 1968-08-05
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Granted: 1970-10-13
•
Expires: 1988-08-05
Abstract
No abstract record available.
Inventors
- 👤 Burton J Sutker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:29
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/80; D21H19/82; D21H19/824; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/249993; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3061475A
Cited
US3198692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |